MACK-CALI REALTY, L.P.

Part I – Financial Information

Item I. Financial Statements

        The accompanying unaudited consolidated balance sheets, statements of operations, of changes in partners’ capital, and of cash flows and related notes thereto, have been prepared in accordance with generally accepted accounting principles (“GAAP”) for interim financial information and in conjunction with the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the disclosures required by GAAP for complete financial statements. The financial statements reflect all adjustments consisting only of normal, recurring adjustments, which are in the opinion of management, necessary for a fair presentation for the interim periods.

        The aforementioned financial statements should be read in conjunction with the notes to the aforementioned financial statements and Management’s Discussion and Analysis of Financial Condition and Results of Operations and the financial statements and notes thereto included in Mack-Cali Realty, L.P.‘s Annual Report on Form 10-K for the fiscal year ended December 31, 2003.

        The results of operations for the three month periods ended March 31, 2004 are not necessarily indicative of the results to be expected for the entire fiscal year or any other period.

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MACK-CALI REALTY, L.P. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS (in thousands, except per unit amounts)

The accompanying notes are an integral part of these consolidated financial statements.

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MACK-CALI REALTY, L.P. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per unit amounts) (unaudited)

The accompanying notes are an integral part of these consolidated financial statements.

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MACK-CALI REALTY, L.P. AND SUBSIDIARIES CONSOLIDATED STATEMENT OF CHANGES IN PARTNERS’ CAPITAL For the Three Months Ended March 31, 2004(in thousands) (unaudited)

The accompanying notes are an integral part of these consolidated financial statements.

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MACK-CALI REALTY, L.P. AND SUBSIDIARIES
CONSOLIDATED STATEMENT OF CASH FLOWS (in thousands) (unaudited)

The accompanying notes are an integral part of these consolidated financial statements.

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MACK-CALI REALTY, L.P. AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (dollars in thousands, except per share/unit amounts)

1.    ORGANIZATION AND BASIS OF PRESENTATION

Mack-Cali Realty, L.P., a Delaware limited partnership, and its subsidiaries (the “Operating Partnership”) was formed on May 31, 1994 to conduct the business of leasing, management, acquisition, development, construction and tenant-related services for its sole general partner, Mack-Cali Realty Corporation and its subsidiaries (the “Corporation” or “General Partner”). The Operating Partnership, through its operating divisions and subsidiaries, including the Mack-Cali property-owning partnerships and limited liability companies (collectively, the “Property Partnerships”), as described below, is the entity through which all of the General Partner’s operations are conducted.

The General Partner is a fully integrated, self-administered, self-managed real estate investment trust (“REIT”). The General Partner controls the Operating Partnership as its sole general partner, and owned an 88.6 percent and 88.4 percent common unit interest in the Operating Partnership as of March 31, 2004 and December 31, 2003, respectively.

The General Partner’s business is the ownership of interests in and operation of the Operating Partnership, and all of the General Partner’s expenses are incurred for the benefit of the Operating Partnership. The General Partner is reimbursed by the Operating Partnership for all expenses it incurs relating to the ownership and operation of the Operating Partnership. The Operating Partnership earns a management fee of between three percent and five percent of revenues, as defined, for its management of the Property Partnerships.

As of March 31, 2003, the Operating Partnership owned or had interests in 263 properties plus developable land (collectively, the “Properties”). The Properties aggregate approximately 28.3 million square feet, which are comprised of 154 office buildings and 97 office/flex buildings, totaling approximately 27.8 million square feet (which include four office buildings and one office/flex building aggregating 1.2 million square feet owned by unconsolidated joint ventures in which the Operating Partnership has investment interests), six industrial/warehouse buildings totaling approximately 387,400 square feet, three retail properties totaling approximately 118,040 square feet (which includes a mixed use retail property totaling approximately 100,740 square feet owned by an unconsolidated joint venture in which the Operating Partnership has an investment interest), one hotel (which is owned by an unconsolidated joint venture in which the Operating Partnership has an investment interest) and two parcels of land leased to others. The Properties are located in eight states, primarily in the Northeast, plus the District of Columbia.

BASIS OF PRESENTATION
The accompanying consolidated financial statements include all accounts of the Operating Partnership and its majority-owned and/or controlled subsidiaries. See Investments in Unconsolidated Joint Ventures in Note 2 for the Operating Partnership’s treatment of unconsolidated joint venture interests. Intercompany accounts and transactions have been eliminated.

The preparation of financial statements in conformity with generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

2.    SIGNIFICANT ACCOUNTING POLICIES

Rental Property
Rental properties are stated at cost less accumulated depreciation and amortization. Costs directly related to the acquisition, development and construction of rental properties are capitalized. Capitalized development and construction costs include pre-construction costs essential to the development of the property, development and construction costs, interest, property taxes, insurance, salaries and other project costs incurred during the period of development. Included in total rental property is construction and development in-progress of $88,588 and $84,105 (including land of $50,156 and $49,045) as of March 31, 2004 and December 31, 2003, respectively. Ordinary repairs and maintenance are expensed as incurred; major replacements and betterments, which improve or extend the life of the asset, are capitalized and depreciated over their estimated useful lives. Fully-depreciated assets are removed from the accounts.

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The Operating Partnership considers a construction project as substantially completed and held available for occupancy upon the completion of tenant improvements, but no later than one year from cessation of major construction activity (as distinguished from activities such as routine maintenance and cleanup). If portions of a rental project are substantially completed and occupied by tenants, or held available for occupancy, and other portions have not yet reached that stage, the substantially completed portions are accounted for as a separate project. The Operating Partnership allocates costs incurred between the portions under construction and the portions substantially completed and held available for occupancy, and capitalizes only those costs associated with the portion under construction.

Properties are depreciated using the straight-line method over the estimated useful lives of the assets. The estimated useful lives are as follows:

Upon acquisition of rental property, the Operating Partnership estimates the fair value of acquired tangible assets, consisting of land, building and improvements, and identified intangible assets and liabilities generally consisting of the fair value of (i) above and below market leases, (ii) in-place leases and (iii) tenant relationships. The Operating Partnership allocates the purchase price to the assets acquired and liabilities assumed based on their relative fair values. In estimating the fair value of the tangible and intangible assets acquired, the Operating Partnership considers information obtained about each property as a result of its due diligence and marketing and leasing activities, and utilizes various valuation methods, such as estimated cash flow projections utilizing appropriate discount and capitalization rates, estimates of replacement costs net of depreciation, and available market information. The fair value of the tangible assets of an acquired property considers the value of the property as if it were vacant.

Above-market and below-market lease values for acquired properties are recorded based on the present value (using a discount rate which reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to each in-place lease and (ii) management’s estimate of fair market lease rates for each corresponding in-place lease, measured over a period equal to the remaining term of the lease for above-market leases and the initial term plus the term of any below-market fixed rate renewal options for below-market leases. The capitalized above-market lease values are amortized as a reduction of base rental revenue over the remaining term of the respective leases, and the capitalized below-market lease values are amortized as an increase to base rental revenue over the remaining initial terms plus the terms of any below-market fixed rate renewal options of the respective leases.

Other intangible assets acquired include amounts for in-place lease values and tenant relationship values which are based on management’s evaluation of the specific characteristics of each tenant’s lease and the Operating Partnership’s overall relationship with the respective tenant. Factors to be considered by management in its analysis of in-place lease values include an estimate of carrying costs during hypothetical expected lease-up periods considering current market conditions, and costs to execute similar leases. In estimating carrying costs, management includes real estate taxes, insurance and other operating expenses and estimates of lost rentals at market rates during the expected lease-up periods, depending on local market conditions. In estimating costs to execute similar leases, management considers leasing commissions, legal and other related expenses. Characteristics considered by management in valuing tenant relationships include the nature and extent of the Operating Partnership’s existing business relationships with the tenant, growth prospects for developing new business with the tenant, the tenant’s credit quality and expectations of lease renewals. The value of in-place leases are amortized to expense over the remaining initial terms of the respective leases. The value of tenant relationship intangibles are amortized to expense over the anticipated life of the relationships.

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On a periodic basis, management assesses whether there are any indicators that the value of the Operating Partnership’s real estate properties may be impaired. A property’s value is impaired only if management’s estimate of the aggregate future cash flows (undiscounted and without interest charges) to be generated by the property is less than the carrying value of the property. To the extent impairment has occurred, the loss shall be measured as the excess of the carrying amount of the property over the fair value of the property. The Operating Partnership’s estimates of aggregate future cash flows expected to be generated by each property are based on a number of assumptions that are subject to economic and market uncertainties including, among others, demand for space, competition for tenants, changes in market rental rates, and costs to operate each property. As these factors are difficult to predict and are subject to future events that may alter management’s assumptions, the future cash flows estimated by management in its impairment analyses may not be achieved. Management does not believe that the value of any of the Operating Partnership’s rental properties is impaired.

Rental Property Held for Sale and Discontinued Operations
When assets are identified by management as held for sale, the Operating Partnership discontinues depreciating the assets and estimates the sales price, net of selling costs, of such assets. If, in management’s opinion, the net sales price of the assets which have been identified as held for sale is less than the net book value of the assets, a valuation allowance is established.

If circumstances arise that previously were considered unlikely and, as a result, the Operating Partnership decides not to sell a property previously classified as held for sale, the property is reclassified as held and used. A property that is reclassified is measured and recorded individually at the lower of (a) its carrying amount before the property was classified as held for sale, adjusted for any depreciation (amortization) expense that would have been recognized had the property been continuously classified as held and used, or (b) the fair value at the date of the subsequent decision not to sell.

Effective January 1, 2002, the Operating Partnership adopted the provisions of Statement of Financial Accounting Standards (“FASB”) No. 144, Accounting for the Impairment or Disposal of Long-Lived Assets, which supercedes FASB No. 121. FASB No. 144 requires that long-lived assets that are to be disposed of by sale be measured at the lower of book value or fair value less cost to sell. FASB No. 144 retains the requirements of FASB No. 121 regarding impairment loss recognition and measurement. In addition, it requires that one accounting model be used for long-lived assets to be disposed of by sale and broadens the presentation of discontinued operations to include more disposal transactions. Properties identified as held for sale and/or sold from January 1, 2002 forward are presented in discontinued operations for all periods presented. See Note 6.

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Investments in Unconsolidated Joint Ventures, Net
On January 17, 2003, the FASB issued Interpretation No. 46, Consolidation of Variable Interest Entities (“FIN 46”), the primary objective of which is to provide guidance on the identification of entities for which control is achieved through means other than voting rights (“variable interest entities” or “VIEs”) and to determine when and which business enterprise should consolidate the VIE (the “primary beneficiary”). In December 2003, the FASB issued a revised FIN 46 which modifies and clarifies various aspects of the original Interpretation. FIN 46 applies when either (1) the equity investors (if any) lack one or more of the essential characteristics of a controlling financial interest, (2) the equity investment at risk is insufficient to finance that entity’s activities without additional subordinated financial support or (3) the equity investors have voting rights that are not proportionate to their economic interests, and the activities of the entity involve or are conducted on behalf of an investor with a disproportionately small voting interest. In addition, FIN 46 requires additional disclosures.

FIN 46 is effective immediately for VIEs created after January 31, 2003, and to VIEs in which an enterprise obtains an interest after that date. For variable interests in a VIE created or obtained prior to February 1, 2003, FIN 46 is effective for periods ending after March 15, 2004. As of March 31, 2004, the Operating Partnership has evaluated its joint ventures with regards to FIN 46. The Operating Partnership has identified its Meadowlands Xanadu joint venture with the Mills Corporation as a VIE, but is not consolidating such venture as the Operating Partnership is not the primary beneficiary. Disclosure about the VIE is included in Note 4 – Investments in Unconsolidated Joint Ventures.

The Operating Partnership accounts for its investments in unconsolidated joint ventures (for which FIN 46 does not apply) under the equity method of accounting as the Operating Partnership exercises significant influence, but does not control these entities. These investments are recorded initially at cost, as Investments in Unconsolidated Joint Ventures, and subsequently adjusted for equity in earnings and cash contributions and distributions.

On a periodic basis, management assesses whether there are any indicators that the value of the Operating Partnership’s investments in unconsolidated joint ventures may be impaired. An investment is impaired only if management’s estimate of the value of the investment is less than the carrying value of the investment. To the extent impairment has occurred, the loss shall be measured as the excess of the carrying amount of the investment over the value of the investment. Management does not believe that the value of any of the Operating Partnership’s investments in unconsolidated joint ventures is impaired. See Note 4.

Cash and Cash Equivalents
All highly liquid investments with a maturity of three months or less when purchased are considered to be cash equivalents.

Deferred Financing Costs
Costs incurred in obtaining financing are capitalized and amortized on a straight-line basis, which approximates the effective interest method, over the term of the related indebtedness. Amortization of such costs is included in interest expense and was $1,105 and $1,251 for the three months ended March 31, 2004 and 2003, respectively.

Deferred Leasing Costs
Costs incurred in connection with leases are capitalized and amortized on a straight-line basis over the terms of the related leases and included in depreciation and amortization. Unamortized deferred leasing costs are charged to amortization expense upon early termination of the lease. Certain employees of the Operating Partnership are compensated for providing leasing services to the Properties. The portion of such compensation, which is capitalized and amortized, approximated $1,475 and $762 for the three months ended March 31, 2004 and 2003, respectively.

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Derivative Instruments
The Operating Partnership measures derivative instruments, including certain derivative instruments embedded in other contracts, at fair value and records them as an asset or liability, depending on the Operating Partnership’s rights or obligations under the applicable derivative contract. For derivatives designated as fair value hedges, the changes in the fair value of both the derivative instrument and the hedged item are recorded in earnings. For derivatives designated as cash flow hedges, the effective portions of the derivative are reported in other comprehensive income (“OCI”) and are subsequently reclassified into earnings when the hedged item affects earnings. Changes in fair value of derivative instruments not designated as hedging and ineffective portions of hedges are recognized in earnings in the affected period.

Revenue Recognition
Base rental revenue is recognized on a straight-line basis over the terms of the respective leases. Unbilled rents receivable represents the amount by which straight-line rental revenue exceeds rents currently billed in accordance with the lease agreements. Above-market and below-market lease values for acquired properties are recorded based on the present value (using a discount rate which reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to each in-place lease and (ii) management’s estimate of fair market lease rates for each corresponding in-place lease, measured over a period equal to the remaining term of the lease for above-market leases and the initial term plus the term of any below-market fixed rate renewal options for below-market leases. The capitalized above-market lease values for acquired properties are amortized as a reduction of base rental revenue over the remaining term of the respective leases, and the capitalized below-market lease values are amortized as an increase to base rental revenue over the remaining initial terms plus the terms of any below-market fixed rate renewal options of the respective leases. Parking and other revenue includes income from parking spaces leased to tenants, income from tenants for additional services provided by the Operating Partnership, income from tenants for early lease terminations and income from managing and/or leasing properties for third parties. Escalations and recoveries are received from tenants for certain costs as provided in the lease agreements. These costs generally include real estate taxes, utilities, insurance, common area maintenance and other recoverable costs. See Note 13.

Allowance for Doubtful Accounts
Management periodically performs a detailed review of amounts due from tenants to determine if accounts receivable balances are impaired based on factors affecting the collectibility of those balances. Management’s estimate of the allowance for doubtful accounts requires management to exercise significant judgment about the timing, frequency and severity of collection losses, which affects the allowance and net income.

Income and Other Taxes
The Operating Partnership is a partnership and, as a result, all income and losses of the partnership are allocated to the partners for inclusion in their respective income tax returns. Accordingly, no provision or benefit for income taxes has been made in the accompanying financial statements.

Earnings Per Unit
The Operating Partnership presents both basic and diluted earnings per unit (“EPU”). Basic EPU excludes dilution and is computed by dividing net income available to common unitholders by the weighted average number of units outstanding for the period. Diluted EPU reflects the potential dilution that could occur if securities or other contracts to issue common units were exercised or converted into common units, where such exercise or conversion would result in a lower EPU amount.

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Distributions Payable
The distributions payable at March 31, 2004 represents distributions payable to preferred unitholders (10,000 Series C Preferred units), common unitholders (68,322,813 common units) and preferred distributions payable to preferred unitholders (215,018 Series B preferred units) for all such holders of record as of April 5, 2004 with respect to the first quarter 2004. The first quarter 2004 Series C Preferred unit distributions of $50.00 per unit, common unit distributions of $0.63 per common unit, as well as the first quarter Series B preferred unit distributions of $18.1818 per preferred unit, were approved by the Corporation’s Board of Directors on March 23, 2004. The Series C preferred unit distributions payable were paid on April 15, 2004. The common and Series B preferred unit distributions payable were paid on April 19, 2004.

The distributions payable at December 31, 2003 represents distributions payable to preferred unitholders (10,000 Series C Preferred units), common unitholders (67,402,002 common units) and preferred distributions payable to preferred unitholders (215,018 Series B preferred units) for all such holders of record as of January 6, 2004 with respect to the fourth quarter 2003. The fourth quarter 2003 Series C Preferred unit distributions of $50.00 per unit, common unit distributions of $0.63 per common unit, as well as the fourth quarter Series B preferred unit distributions of $18.1818 per preferred unit, were approved by the Corporation’s Board of Directors on December 17, 2003. The Series C preferred unit distributions payable were paid on January 15, 2004. The common and Series B preferred unit distributions payable were paid on January 16, 2004.

Costs Incurred For Preferred Stock Issuances
Costs incurred in connection with the Corporation’s preferred stock issuances are reflected as a reduction of General Partners’ capital.

Stock Compensation
The Operating Partnership accounts for stock options and restricted stock awards granted prior to 2002 using the intrinsic value method prescribed in Accounting Principles Board Opinion No. 25, “Accounting for Stock Issued to Employees,” and related Interpretations (“APB No. 25”). Under APB No. 25, compensation cost for stock options is measured as the excess, if any, of the quoted market price of the Corporation’s stock at the date of grant over the exercise price of the option granted. Compensation cost for stock options is recognized ratably over the vesting period. The Corporation’s policy is to grant options with an exercise price equal to the quoted closing market price of the Corporation’s stock on the business day preceding the grant date. Accordingly, no compensation cost has been recognized under the Corporation’s stock option plans for the granting of stock options made prior to 2002. Restricted stock awards granted prior to 2002 are valued at the vesting dates of such awards, with compensation costs for such awards recognized ratably over the vesting period.

In 2002, the Operating Partnership adopted the provisions of FASB No. 123, which requires, on a prospective basis, that the estimated fair value of restricted stock and stock options at the grant date be amortized ratably into expense over the appropriate vesting period. For the three months ended March 31, 2004 and 2003, the Operating Partnership recorded restricted stock and stock options expense of $771 and $417, respectively, for restricted stock and stock options granted or modified in 2003 and 2004. FASB No. 148, Accounting for Stock-Based Compensation – Transition and Disclosure, was issued in December 2002 and amends FASB No. 123, Accounting for Stock Based Compensation. FASB No. 148 provides alternative methods of transition for a voluntary change to the fair value based method of accounting for stock based compensation. In addition, this Statement amends the disclosure requirements of FASB No. 123 to require prominent disclosures in both annual and interim financial statements about the method of accounting for stock-based employee compensation and the effect of the method used on reported results. FASB No. 148 disclosure requirements are presented as follows:

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The following table illustrates the effect on net income and earnings per unit if the fair value based method had been applied to all outstanding and unvested stock awards in each period:

Reclassifications
Certain reclassifications have been made to prior period amounts in order to conform with current period presentation.

3.    REAL ESTATE PROPERTY TRANSACTIONS

PROPERTY ACQUISITION
On April 14, 2004, the Operating Partnership acquired 5 Wood Hollow Road, located in Parsippany, New Jersey. The 317,040 square-foot class A office building was acquired for approximately $34,000.

4.    INVESTMENTS IN UNCONSOLIDATED JOINT VENTURES

The debt of the Operating Partnership’s unconsolidated joint ventures aggregating $106,459 as of March 31, 2004 is non-recourse to the Operating Partnership, except for customary exceptions pertaining to such matters as intentional misuse of funds, environmental conditions and material misrepresentations, and except as otherwise indicated below.

MEADOWLANDS XANADU
On November 25, 2003, the Operating Partnership and affiliates of The Mills Corporation (“Mills”) entered into a joint venture to form Meadowlands Mills/Mack-Cali Limited Partnership (“Meadowlands Venture”) for the purpose of developing a $1.3 billion family entertainment and recreation complex with an office and hotel component to be built at the Meadowlands sports complex in East Rutherford, New Jersey (“Meadowlands Xanadu”). Meadowlands Xanadu’s approximately 4.76 million-square-foot complex is expected to feature a family entertainment destination comprising three themed zones: sports/recreation, children’s activities and fashion, in addition to four office buildings, aggregating approximately 1.8 million square feet, and a 520-room hotel.

On December 3, 2003, the Meadowlands Venture entered into a redevelopment agreement (the “Redevelopment Agreement”) with the New Jersey Sports and Exposition Authority (“NJSEA”) for the redevelopment of the area surrounding the Continental Airlines Arena in East Rutherford, New Jersey and the construction of the Meadowlands Xanadu project. The Redevelopment Agreement provides for a 75-year ground lease, which requires the joint venture to pay the NJSEA a $160,000 development rights fee at the start of construction of the entertainment phase, when all permits and approvals are obtained, and the payment of fixed rent over the term. Fixed rent will be in the amount of $1 per year for the first 15 years, increasing to $7,500 from the 16^th to the 18^th year, increasing to $8,447 in the 19^th year, increasing to $8,700 in the 20^th year, increasing to $8,961 in the 21^st year, then to $9,200 in the 23^rd to 26^th year, with additional increases over the remainder of the term, as set forth in the ground lease. The ground lease also allows for the potential for participation rent payments by the venture, as described in the ground lease agreement.

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The Operating Partnership and Mills own a 20 percent and 80 percent interest, respectively, in the Meadowlands Venture. These interests were subject to certain participation rights by The New York Giants, which were subsequently terminated in April 2004. The joint venture agreement requires the Operating Partnership to make an equity contribution up to a maximum of $32,500. As part of the Redevelopment Agreement, Mills is required to contribute certain vacant land, known as the Empire Tract, to the State of New Jersey to be used as a wetlands mitigation bank, for which Mills has received subordinated capital credit in the venture of approximately $118,000. The joint venture agreement requires Mills to contribute the balance of the capital required to complete the entertainment phase, subject to certain limitations. The Operating Partnership will receive a nine percent preferred return on its equity investment, only after Mills receives a nine percent preferred return on its equity investment. Residual returns, subject to participation by other parties, will be in proportion to each partners’ respective percentage interest.

Mills will develop, lease and operate the entertainment phase of the Meadowlands Xanadu project. The joint venture agreement provides the Operating Partnership an option to cause the Meadowlands Venture to form component ventures for the future development of the office and hotel phases, for which the Operating Partnership will develop, lease and operate such phases. The Operating Partnership will own an 80 percent interest and Mills will own a 20 percent interest in such component ventures. The agreement provides for the first office or hotel component ventures to be formed no later than four years after the grand opening of the entertainment phase, and requires that all component ventures for the office and hotel phases be formed no later than 10 years from such date, but does not require that any or all components be developed. However, under the Meadowlands Venture agreement, Mills has the ability to accelerate such formation schedule, subject to certain conditions. Should the Operating Partnership fail to meet the time schedule described above for the formation of the component ventures, the Operating Partnership will forfeit its rights to cause the Meadowlands Venture to form additional component ventures. If this occurs, Mills will have the ability to develop the additional phases, subject to the Operating Partnership’s right to participate, or to cause the Meadowlands Venture to sell such components to a third party, subject to a sales price limitation of 95 percent of the value that would have been the amount necessary to form such component ventures.

On March 27, 2003, Hartz Mountain Industries, Inc. (“Hartz”) filed a lawsuit in the Superior Court of New Jersey, Law Division, for Bergen County, seeking to enjoin the NJSEA from entering into a contract with Mills and the Operating Partnership for the redevelopment of the Continental Airlines Arena site. The case was dismissed by the trial court but Hartz appealed. Hartz also appealed the NJSEA’s final decision which denied Hartz’s bid protest on October 23, 2003. Westfield America, Inc., has also protested the NJSEA decision, and has appealed the NJSEA’s denial of its protest. In January 2004, Hartz and Westfield also appealed the NJSEA’s approval and execution of the final Redevelopment Agreement. Four citizens, Elliot Braha, Richard DeLauro, George Perry and Carol Coronato, have also filed lawsuits challenging the NJSEA award to Mills and the Operating Partnership. All of these cases are now pending unresolved in the Superior Court of New Jersey, Appellate Division. The Operating Partnership believes that its proposal fully complied with applicable laws and the request for proposals, and it plans to vigorously enforce its rights concerning this project.

HPMC
On April 23, 1998, the Operating Partnership entered into a joint venture with HCG Development, L.L.C. and Summit Partners I, L.L.C. to form HPMC Development Partners, L.P. and, on July 21, 1998, entered into a second joint venture, HPMC Development Partners II, L.P. (formerly known as HPMC Lava Ridge Partners, L.P.), with these same parties. HPMC Development Partners, L.P.‘s efforts focused on two development projects, commonly referred to as Continental Grand II and Summit Ridge. HPMC Development Partners II, L.P.‘s efforts have focused on three development projects, commonly referred to as Lava Ridge, Pacific Plaza I & II and Stadium Gateway.

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The Operating Partnership has a 50 percent ownership interest and HCG Development, L.L.C. and Summit Partners I, L.L.C. (both of which are not affiliated with the Operating Partnership) collectively have a 50 percent ownership interest in HPMC Development Partners, L.P. and HPMC Development Partners II, L.P. (the “HPMC Joint Ventures”). Significant terms of the applicable partnership agreements, among other things, call for the Operating Partnership to provide 80 percent and HCG Development, L.L.C. and Summit Partners I, L.L.C. to collectively provide 20 percent of the development equity capital to the HPMC Joint Ventures. As the Operating Partnership has agreed to fund development equity capital disproportionate to its ownership interest, it was granted a preferred return of 10 percent on its invested capital as a priority. Profits and losses of each of the HPMC Joint Ventures are allocated to the partners based upon the priority of distributions specified in the respective agreements and entitle the Operating Partnership to a preferred return, as well as 50 percent of each of the HPMC Joint Ventures’ residual profits above the preferred returns. Equity in earnings recognized by the Operating Partnership consists of preferred returns and the Operating Partnership’s equity in the HPMC Joint Ventures’ earnings (loss) after giving effect to the HPMC Joint Ventures’ payment of such preferred returns.

G&G MARTCO (Convention Plaza)
The Operating Partnership holds a 50 percent interest in G&G Martco, which owns Convention Plaza, a 305,618 square-foot office building, located in San Francisco, California. The venture has a mortgage loan with a $41,229 balance at March 31, 2004 collateralized by its office property. The loan also provides the venture the ability to increase the balance of the loan up to an additional $6,720 for the funding of qualified leasing costs. The loan bears interest at a rate of the London Inter-Bank Offered Rate (“LIBOR”) (1.09 percent at March 31, 2004) plus 162.5 basis points and matures in August 2006. The Operating Partnership performs management and leasing services for the property owned by the joint venture and recognized $36 and $61 in fees for such services in the three months ended March 31, 2004 and 2003, respectively.

AMERICAN FINANCIAL EXCHANGE L.L.C./PLAZA VIII AND IX ASSOCIATES, L.L.C.
On May 20, 1998, the Operating Partnership entered into a joint venture with Columbia Development Company, L.L.C. (“Columbia”) to form American Financial Exchange L.L.C. The venture was formed to acquire land for future development, located on the Hudson River waterfront in Jersey City, New Jersey, adjacent to the Operating Partnership’s Harborside Financial Center office complex. Among other things, the partnership agreement provides for a preferred return on the Operating Partnership’s invested capital in the venture, in addition to the Operating Partnership’s proportionate share of the venture’s profit, as defined in the agreement. The joint venture acquired land on which it initially constructed a parking facility, a portion of which is currently licensed to a parking operator. Such parking facility serves a ferry service between the Operating Partnership’s Harborside property and Manhattan. In the fourth quarter 2000, the joint venture started construction of Plaza 10, a 577,575 square-foot office building, which was 100 percent pre-leased to Charles Schwab & Co. Inc. (“Schwab”) for a 15-year term, on certain of the land owned by the venture. The lease agreement with Schwab obligated the venture, among other things, to deliver space to the tenant by required timelines and offers expansion options, at the tenant’s election.

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Such options may have obligated the venture to construct an additional building or, at the Operating Partnership’s option, to make space available in any of its existing Harborside properties. Had the venture been unable to, or chosen not to, provide such expansion space, the venture would have been liable to Schwab for its actual damages, in no event to exceed $15,000. The amount of Schwab’s actual damages, up to $15,000, had been guaranteed by the Operating Partnership. As described below, the Operating Partnership no longer has any remaining obligations to Schwab following the sale of the Operating Partnership’s interest in the venture. AFE has an agreement with the City of Jersey City, New Jersey, in which it is required to make payments in lieu of property taxes (“PILOT”). The agreement is for a term of 20 years. The PILOT is equal to two percent of Total Project Costs, as defined, with periodic increases, as defined. Total Project Costs, per the agreement, are the greater of $78,821 or actual Total Project Costs, as defined.

The Operating Partnership performed management, leasing and development services for the Plaza 10 property owned by the venture and recognized $0 and $225 in fees for such services in the three months ended March 31, 2004 and 2003, respectively.

On September 29, 2003, the Operating Partnership sold its interest in AFE, in which it held a 50 percent interest, and received approximately $162,145 in net sales proceeds from the transaction, which the Operating Partnership used primarily to repay outstanding borrowings under its revolving credit facility. The Operating Partnership recognized a gain on the sale of approximately $23,952, which is recorded in gain on sale of investment in unconsolidated joint venture for the year ended December 31, 2003. Following completion of the sale of its interest, the Operating Partnership no longer has any remaining obligations to Schwab.

In advance of the transaction, AFE distributed its interests in Plaza VIII and IX Associates, L.L.C., which owned the undeveloped land currently used as a parking facility, to its then partners, the Operating Partnership and Columbia. The Operating Partnership and Columbia subsequently entered into a new joint venture to own and manage the undeveloped land and related parking operations through Plaza VIII and IX Associates, L.L.C. The Operating Partnership and Columbia each hold a 50 percent interest in the new venture.

RAMLAND REALTY ASSOCIATES L.L.C. (One Ramland Road)
On August 20, 1998, the Operating Partnership entered into a joint venture with S.B. New York Realty Corp. to form Ramland Realty Associates L.L.C. The venture was formed to own, manage and operate One Ramland Road, a 232,000 square-foot office/flex building and adjacent developable land, located in Orangeburg, New York. In August 1999, the joint venture completed redevelopment of the property and placed the office/flex building in service. The Operating Partnership holds a 50 percent interest in the joint venture. The venture has a mortgage loan with a $14,936 balance at March 31, 2004 secured by its office/flex property. The mortgage bears interest at a rate of LIBOR plus 175 basis points and matures in January 2005. The venture is currently in discussions with the current lender regarding a long-term extension of the mortgage loan. In the event the lender does not provide an extension of the mortgage loan, the venture intends to pursue alternative financing strategies.

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In 2001, the property’s then principal tenant, Superior Bank was closed by the Office of Thrift Supervision, and the Federal Deposit Insurance Corporation (FDIC) was named receiver. The tenant continued to meet its rental payment obligations through June 2002. In July 2002, the tenant vacated the premises and the FDIC notified the joint venture that it was rejecting the lease as of July 16, 2002. As a result of the uncertainty regarding the tenant’s ability to meet its obligations through the remainder of the term of its lease, the joint venture wrote off unbilled rents receivable of $1,573 and deferred lease costs of $705, which was included in the Operating Partnership’s equity in earnings for the year ended December 31, 2002. Subsequently, the venture’s management determined it was unlikely a prospective tenant would retain tenant improvements previously made to Superior Bank’s space and, accordingly, the venture accelerated amortization of those tenant improvements and recorded a charge of $3,586, which is included in the Operating Partnership’s equity in earnings in the three months ended March 31, 2003. The Operating Partnership performs management, leasing and other services for the property owned by the joint venture and recognized $3 and $6 in fees for such services in the three months ended March 31, 2004 and 2003, respectively.

ASHFORD LOOP ASSOCIATES L.P. (1001 South Dairy Ashford/2100 West Loop South)
On September 18, 1998, the Operating Partnership entered into a joint venture with Prudential to form Ashford Loop Associates L.P. The venture was formed to own, manage and operate 1001 South Dairy Ashford, a 130,000 square-foot office building acquired on September 18, 1998, and 2100 West Loop South, a 168,000 square-foot office building acquired on November 25, 1998, both located in Houston, Texas. The Operating Partnership holds a 20 percent interest in the joint venture. The Operating Partnership performed management and leasing services through March 2002 for the properties owned by the joint venture and recognized $45 in fees for such services in the three months ended March 31, 2002. Under certain circumstances, Prudential has the right to convert its interest in the venture into common stock of the Corporation at a discount to the stock’s fair market value, based on the underlying fair value of Prudential’s interest in the venture at the time of conversion. The Operating Partnership, at its option, can elect to exchange cash in lieu of stock in an amount equal to the fair value of Prudential’s interest.

SOUTH PIER AT HARBORSIDE – HOTEL DEVELOPMENT
On November 17, 1999, the Operating Partnership entered into a joint venture with Hyatt Corporation (“Hyatt”) to develop a 350-room hotel on the South Pier at Harborside Financial Center, Jersey City, New Jersey, which was completed and commenced initial operations in July 2002. The Operating Partnership owns a 50 percent interest in the venture. The venture had a mortgage loan with a commercial bank with a $62,902 balance at December 31, 2003 collateralized by its hotel property. The debt bore interest at a rate of LIBOR plus 275 basis points and was scheduled to mature in December 2003, and was extended through January 29, 2004. On that date the venture repaid the mortgage loan using the proceeds from a new $40,000 mortgage loan, collateralized by the hotel property, as well as capital contributions from the Operating Partnership and Hyatt of $10,750 each. The new loan carries an interest rate of LIBOR plus 200 basis points and matures in February 2006. The loan provides for three one-year extension options subject to certain conditions. The final two one-year extension options require payment of a fee. Additionally, the venture has an $8,000 loan with the City of Jersey City, provided by the U.S. Department of Housing and Urban Development. The loan currently bears interest at fixed rates ranging from 6.09 percent to 6.62 percent and matures in August 2020. The Operating Partnership has posted an $8,000 letter of credit in support of this loan, $4,000 of which is indemnified by Hyatt.

NORTH PIER AT HARBORSIDE – RESIDENTIAL DEVELOPMENT
On April 3, 2001, the Operating Partnership sold its North Pier at Harborside Financial Center, Jersey City, New Jersey to an entity which planned on developing residential housing on the site. At the time, the Operating Partnership received net sales proceeds of approximately $3,357 (which included a note receivable of $2,027 subsequently repaid in 2002), and recognized a gain of $439 from the transaction. On March 31, 2004, the Operating Partnership received an additional $720 as additional contingent purchase consideration resulting from the achievement of certain conditions at the property subsequent to the initial sale, for which the Operating Partnership recorded a gain of $720 in gain on sale of investment in unconsolidated joint ventures for the three months ended March 31, 2004.

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SUMMARIES OF UNCONSOLIDATED JOINT VENTURES

The following is a summary of the financial position of the unconsolidated joint ventures in which the Operating Partnership had investment interests as of March 31, 2004 and December 31, 2003:

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SUMMARIES OF UNCONSOLIDATED JOINT VENTURES

The following is a summary of the results of operations of the unconsolidated joint ventures for the period in which the Operating Partnership had investment interests during the three months ended March 31, 2004 and 2003:

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5.    DEFERRED CHARGES AND OTHER ASSETS

6.    DISCONTINUED OPERATIONS

Effective January 1, 2002, the Operating Partnership adopted the provisions of FASB No. 144, Accounting for the Impairment or Disposal of Long-Lived Assets, which supercedes FASB No. 121. FASB No. 144 requires that long-lived assets that are to be disposed of by sale be measured at the lower of book value or fair value less cost to sell. FASB No. 144 retains the requirements of FASB No. 121 regarding impairment loss recognition and measurement. In addition, it requires that one accounting model be used for long-lived assets to be disposed of by sale and broadens the presentation of discontinued operations to include more disposal transactions. As the Operating Partnership sold 1770 St. James Place, Houston, Texas; 111 Soledad, San Antonio, Texas; and land in Hamilton Township, New Jersey during the year ended December 31, 2003, the Operating Partnership has presented these assets as discontinued operations in its statements of operations for the periods presented.

The following tables summarize income from discontinued operations and the related realized gain on sale of rental property for the three months ended March 31, 2004 and 2003:

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7.    SENIOR UNSECURED NOTES

A summary of the Operating Partnership’s senior unsecured notes as of March 31, 2004 and December 31, 2003 is as follows:

On March 22, 2004, the Operating Partnership issued $100,000 face amount of 5.125 percent senior unsecured notes due February 15, 2014 with interest payable semi-annually in arrears. The total proceeds from the issuance (including premium and net of selling commissions) of approximately $103,137 were used primarily to reduce outstanding borrowings under the Operating Partnership’s unsecured facility.

On March 15, 2004, the Operating Partnership retired $300,000 face amount of 7.00 percent senior unsecured notes due on that date. Funds used for the retirement were obtained from proceeds from the February 2004 $100,000 senior unsecured notes offering, borrowings under the unsecured facility and available cash.

On February 9, 2004, the Operating Partnership issued $100,000 face amount of 5.125 percent senior unsecured notes due February 15, 2014 with interest payable semi-annually in arrears. The total proceeds from the issuance (net of selling commissions and discount) of approximately $98,538 were held until March 15, 2004, when the Operating Partnership used the net proceeds from the sale, together with borrowings under the unsecured facility and available cash, to repay the $300 million 7.00 percent notes due March 15, 2004.

8.    UNSECURED REVOLVING CREDIT FACILITY

In 2002, the Operating Partnership obtained an unsecured revolving credit facility with a current borrowing capacity of $600,000 from a group of 15 lenders. The interest rate on outstanding borrowings under the unsecured facility is currently LIBOR plus 70 basis points. The Operating Partnership may instead elect an interest rate representing the higher of the lender’s prime rate or the Federal Funds rate plus 50 basis points. The unsecured facility also requires a 20 basis point facility fee on the current borrowing capacity payable quarterly in arrears. The unsecured facility matures in September 2005, with an extension option of one year, which would require upon exercise a payment of 25 basis points of the then borrowing capacity of the credit line.

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In the event of a change in the Operating Partnership’s unsecured debt rating, the interest and facility fee rates will be adjusted in accordance with the following table:

The terms of the unsecured facility include certain restrictions and covenants which limit, among other things, the payment of dividends (as discussed below), the incurrence of additional indebtedness, the incurrence of liens and the disposition of assets, and which require compliance with financial ratios relating to the maximum leverage ratio, the maximum amount of secured indebtedness, the minimum amount of tangible net worth, the minimum amount of debt service coverage, the minimum amount of fixed charge coverage, the maximum amount of unsecured indebtedness, the minimum amount of unencumbered property debt service coverage and certain investment limitations. The dividend restriction referred to above provides that, except to enable the Corporation to continue to qualify as a REIT under the Code, the Corporation will not during any four consecutive fiscal quarters make distributions with respect to common stock or other common equity interests in an aggregate amount in excess of 90 percent of funds from operations (as defined) for such period, subject to certain other adjustments.

The lending group for the unsecured facility consists of: JPMorgan Chase Bank, as administrative agent; Fleet National Bank, as syndication agent; Bank of America, N.A. and Wells Fargo Bank, National Association, as co-documentation agents; Commerzbank AG, as co-syndication agent; The Bank of Nova Scotia, Bank One, N.A., Citicorp North America, Inc., and Wachovia Bank, National Association, as managing agents, PNC Bank, National Association, and SunTrust Bank, as co-agents; Bayerische Landesbank, Deutsche Bank Trust Company Americas, Chevy Chase Bank, F.S.B. and Israel Discount Bank of New York, as syndicate members.

SUMMARY
As of March 31, 2004 and December 31, 2003, the Operating Partnership had outstanding borrowings of $30,000 and $0, respectively, under the unsecured facility (with an aggregate borrowing capacity of $600,000).

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9.    MORTGAGES AND LOANS PAYABLE

The Operating Partnership has mortgages and loans payable which consist of various loans collateralized by certain of the Operating Partnership’s rental properties. Payments on mortgages and loans payable are generally due in monthly installments of principal and interest, or interest only.

A summary of the Operating Partnership’s mortgages and loans payable as of March 31, 2004 and December 31, 2003 is as follows:

CASH PAID FOR INTEREST AND INTEREST CAPITALIZED
Cash paid for interest for the three months ended March 31, 2004 and 2003 was $40,464 and $46,418, respectively. Interest capitalized by the Operating Partnership for the three months ended March 31, 2004 and 2003 was $914 and $2,328, respectively.

SUMMARY OF INDEBTEDNESS
As of March 31, 2004, the Operating Partnership’s total indebtedness of $1,559,769 (weighted average interest rate of 6.71 percent) was comprised of $62,178 of variable rate mortgage debt (weighted average rate of 1.81 percent) and fixed rate debt of $1,497,591 (weighted average rate of 6.91 percent).

As of December 31, 2003, the Operating Partnership’s total indebtedness of $1,628,584 (weighted average interest rate of 7.10 percent) was comprised of $32,178 of variable rate mortgage debt (weighted average rate of 1.84 percent) and fixed rate debt of $1,596,406 (weighted average rate of 7.21 percent).

10.    PARTNERS’ CAPITAL

Partners’ capital in the accompanying consolidated financial statements relates to: (a) General Partner’s capital, consisting of common units and Series C preferred units held by the Corporation in the Operating Partnership, and (b) Limited Partners’ capital, consisting of common units held by the limited partners and Series B preferred units.

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Any transactions resulting in the issuance of additional common and preferred stock of the Corporation result in a corresponding issuance by the Operating Partnership of an equivalent amount of common and preferred units to the Corporation.

GENERAL PARTNER:

PREFERRED STOCK
On March 14, 2003, in a publicly registered transaction with a single institutional buyer, the Corporation completed the sale and issuance of 10,000 shares of eight-percent Series C cumulative redeemable perpetual preferred stock (“Series C Preferred Stock”) in the form of 1,000,000 depositary shares ($25 stated value per depositary share). Each depositary share represents 1/100th of a share of Series C Preferred Stock. The Corporation received net proceeds of approximately $24,836 from the sale.

The Series C Preferred Stock has preference rights with respect to liquidation and distributions over the common stock. Holders of the Series C Preferred Stock, except under certain limited conditions, will not be entitled to vote on any matters. In the event of a cumulative arrearage equal to six quarterly dividends, holders of the Series C Preferred Stock will have the right to elect two additional members to serve on the Corporation’s Board of Directors until dividends have been paid in full. At March 31, 2004, there were no dividends in arrears. The Corporation may issue unlimited additional preferred stock ranking on a parity with the Series C Preferred Stock but may not issue any preferred stock senior to the Series C Preferred Stock without the consent of two-thirds of its holders. The Series C Preferred Stock is essentially on an equivalent basis in priority with the Preferred Units.

Except under certain conditions relating to the Corporation’s qualification as a REIT, the Series C Preferred Stock is not redeemable prior to March 14, 2008. On and after such date, the Series C Preferred Stock will be redeemable at the option of the Corporation, in whole or in part, at $25 per depositary share, plus accrued and unpaid dividends.

REPURCHASE OF GENERAL PARTNER UNITS
On September 13, 2000, the Board of Directors of the Corporation authorized an increase to the Corporation’s repurchase program under which the Corporation was permitted to purchase up to an additional $150,000 of the Corporation’s outstanding common stock (“Repurchase Program”). From that date through its last purchases on January 10, 2003, the Corporation purchased and retired, under the Repurchase Program, 3,746,400 shares of its outstanding common stock for an aggregate cost of approximately $104,512. Concurrent with these purchases, the Corporation sold to the Operating Partnership 3,746,400 common units for an aggregate cost of approximately $104,512. The Corporation has a remaining authorization to repurchase up to an additional $45,488 of its outstanding common stock, which it may repurchase from time to time in open market transactions at prevailing prices or through privately negotiated transactions.

STOCK OPTION PLANS
In September 2000, the Corporation established the 2000 Employee Stock Option Plan (“2000 Employee Plan”) and the 2000 Director Stock Option Plan (“2000 Director Plan”). In May 2002, shareholders of the Corporation approved amendments to both plans to increase the total shares reserved for issuance under both plans from 2,700,000 to 4,350,000 shares (subject to adjustment) of the Corporation’s common stock (from 2,500,000 to 4,000,000 shares under the 2000 Employee Plan and from 200,000 to 350,000 shares under the 2000 Director Plan). In 1994, and as subsequently amended, the Corporation established the Mack-Cali Employee Stock Option Plan (“Employee Plan”) and the Mack-Cali Director Stock Option Plan (“Director Plan”) under which a total of 5,380,188 shares (subject to adjustment) of the Corporation’s common stock have been reserved for issuance (4,980,188 shares under the Employee Plan and 400,000 shares under the Director Plan). Stock options granted under the Employee Plan in 1994 and 1995 became exercisable over a three-year period. Stock options granted under the 2000 Employee Plan and those options granted subsequent to 1995 under the Employee Plan become exercisable over a five-year period. All stock options granted under both the 2000 Director Plan and Director Plan become exercisable in one year. All options were granted at the fair market value at the dates of grant and have terms of ten years. As of March 31, 2004 and December 31, 2003, the stock options outstanding had a weighted average remaining contractual life of approximately 7.0 and 6.9 years, respectively.

Information regarding the Corporation’s stock option plans is summarized below:

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The Operating Partnership recognized stock options expense of $49 and $38 for the three months ended March 31, 2004 and 2003, respectively.

STOCK WARRANTS
Information regarding the Corporation’s stock warrants (“Stock Warrants”), which enable the holders to purchase an equal number of shares of the Corporation’s common stock at the respective exercise price, is summarized below:

STOCK COMPENSATION
The Corporation has granted stock awards to officers, certain other employees, and non-employee members of the Board of Directors of the Corporation (collectively, “Restricted Stock Awards”), which allow the holders to each receive a certain amount of shares of the Corporation’s common stock generally over a one to five-year vesting period. Certain Restricted Stock Awards are contingent upon the Corporation meeting certain performance and/or stock price appreciation objectives. All Restricted Stock Awards provided to the officers and certain other employees were granted under the 2000 Employee Plan and Employee Plan. Restricted Stock Awards granted to directors were granted under the 2000 Director Plan.

Information regarding the Restricted Stock Awards is summarized below:

DEFERRED STOCK COMPENSATION PLAN FOR DIRECTORS
The Deferred Compensation Plan for Directors, which commenced January 1, 1999, allows non-employee directors of the Corporation to elect to defer up to 100 percent of their annual retainer fee into deferred stock units. The deferred stock units are convertible into an equal number of shares of common stock upon the directors’ termination of service from the Board of Directors or a change in control of the Corporation, as defined in the plan. Deferred stock units are credited to each director quarterly using the closing price of the Corporation’s common stock on the applicable dividend record date for the respective quarter. Each participating director’s account is also credited for an equivalent amount of deferred stock units based on the dividend rate for each quarter.

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During the three months ended March 31, 2004 and 2003, 1,537 and 1,784 deferred stock units were earned, respectively. As of March 31, 2004 and December 31, 2003, there were 24,570 and 23,131 director stock units outstanding, respectively.

LIMITED PARTNERS’ CAPITAL:

SERIES B PREFERRED UNITS
The Series B Preferred Units have a stated value of $1,000 per unit and are preferred as to assets over any class of common units or other class of preferred units of the Operating Partnership, based on circumstances per the applicable unit certificates. The quarterly distribution on each Series B Preferred Unit is an amount equal to the greater of (i) $16.875 (representing 6.75 percent of the Preferred Unit stated value of an annualized basis) or (ii) the quarterly distribution attributable to a Series B Preferred Unit determined as if such unit had been converted into common units, subject to adjustment for customary anti-dilution rights. Each of the Series B Preferred Units may be converted at any time into common units at a conversion price of $34.65 per unit. Common units received pursuant to such conversion may be redeemed for an equal number of shares of common stock. At any time after June 11, 2005, the Operating Partnership may cause the mandatory conversion of the Series B Preferred Units into common units at the conversion price of $34.65 per unit if, for at least 20 of the prior consecutive 30 days, the closing price of the Corporation’s common stock equals or exceeds $34.65. The Operating Partnership is prohibited from taking certain actions that would adversely affect the rights of the holders of Series B Preferred Units without the consent of at least 66 2/3 percent of the outstanding Series B Preferred Units, including authorizing, creating or issuing any additional preferred units ranking senior to or equal with the Series B Preferred Units; provided, however, that such consent is not required if the Operating Partnership issues preferred units ranking equal (but not senior) to the Series B Preferred Units in an aggregate amount up to the greater of (a) $200,000 in stated value or (b) 10 percent of the sum of (1) the combined market capitalization of the Corporation’s common stock and the Operating Partnership’s common units and Series B Preferred Units, as if converted into common stock, and (2) the aggregate liquidation preference on any of the Corporation’s non-convertible preferred stock or the Operating Partnership’s non-convertible preferred units. As of March 31, 2004, the calculation in the above clause (b) was $336,614.

As of March 31, 2004 and December 31, 2003, the Operating Partnership had 215,018 and 215,018 Series B Preferred Units outstanding (convertible into 6,205,425 and 6,205,425 common units), respectively.

COMMON UNITS
Certain individuals and entities own common units in the Operating Partnership. A common unit and a share of common stock of the Corporation have substantially the same economic characteristics in as much as they effectively share equally in the net income or loss of the Operating Partnership. Common units are redeemable by the common unitholders at their option, subject to certain restrictions, on the basis of one common unit for either one share of common stock or cash equal to the fair market value of a share at the time of the redemption. The Corporation has the option to deliver shares of common stock in exchange for all or any portion of the cash requested. The common unitholders may not put the units for cash to the Corporation or the Operating Partnership. When a unitholder redeems a common unit for common stock of the Corporation, limited partners’ capital is reduced and the General Partners’ capital is increased.

EARNINGS PER UNIT
Basic EPU excludes dilution and is computed by dividing net income available to common unitholders by the weighted average number of units outstanding for the period. Diluted EPU reflects the potential dilution that could occur if securities or other contracts to issue common units were exercised or converted into common units.

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The following information presents the Operating Partnership’s results for the three months ended March 31, 2004 and 2003 in accordance with FASB No. 128:

The following schedule reconciles the units used in the basic EPU calculation to the units used in the diluted EPU calculation:

Not included in the computations of diluted EPU were 0 and 2,418,353 stock options; 0 and 642,476 Stock Warrants; and 6,205,425 and 6,230,707 Series B Preferred Units, as such securities were anti-dilutive during the three months ended March 31, 2004 and 2003, respectively. Unvested restricted stock outstanding as of March 31, 2004 and 2003 were 226,272 and 264,369, respectively.

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11.    EMPLOYEE BENEFIT 401(k) PLAN

All employees of the Corporation who meet certain minimum age and period of service requirements are eligible to participate in a 401(k) defined contribution plan (the “401(k) Plan”). The 401(k) Plan allows eligible employees to defer up to 15 percent of their annual compensation, subject to certain limitations imposed by federal law. The amounts contributed by employees are immediately vested and non-forfeitable. The Operating Partnership, at management’s discretion, may match employee contributions and/or make discretionary contributions. Total expense recognized by the Operating Partnership for the three months ended March 31, 2004 and 2003 was $100 and $100, respectively.

12.    COMMITMENTS AND CONTINGENCIES

TAX ABATEMENT AGREEMENTS
Harborside Financial Center
Pursuant to an agreement with the City of Jersey City, New Jersey, the Operating Partnership is required to make payments in lieu of property taxes (“PILOT”) on its Harborside Plaza 2, 3, 4-A and 5 properties. The Plaza 2 and 3 agreement, which commenced in 1990, is for a term of 15 years. Such PILOT is equal to two percent of Total Project Costs, as defined, in year one and increases by $75 per annum through year 15. Total Project Costs, as defined, are $145,644. The PILOT totaled $972 and $953 for the three months ended March 31, 2004 and 2003, respectively.

The Plaza 4-A agreement, which commenced in 2000, is for a term of 20 years. The PILOT is equal to two percent of Total Project costs, as defined, and increases by 10 percent in years 7, 10 and 13 and by 50 percent in year 16. Total Project costs, as defined, are $45,497. The PILOT totaled $227 and $227 for the three months ended March 31, 2004 and 2003, respectively.

The Plaza 5 agreement, which commenced in 2002 upon substantial completion of the property, as defined, is for a term of 20 years. The PILOT is equal to two percent of Total Project Costs, as defined, and increases by 10 percent in years 7, 10 and 13, and by 50 percent in year 16. Total Project Costs, as defined are $159,625. The PILOT totaled $798 and $661 for the three months ended March 31, 2004 and 2003, respectively.

LITIGATION
On May 8, 2003, an adversary proceeding arising out of the bankruptcy of Broadband Office, Inc. (“BBO”) was commenced by BBO and the Official Committee of Unsecured Creditors of BBO (“Plaintiffs”) in the United States Bankruptcy Court for the District of Delaware. On August 25, 2003, the Plaintiffs filed an Amended Complaint. As amended, the Complaint names as defendants the Operating Partnership, the chief executive officer of the Corporation, and certain alleged affiliates of the Corporation (the “Mack-Cali Defendants”). Also named as defendants are seven other real estate investment trusts or partnerships (“REITs”) that invested in BBO and the eight individuals designated by the REITs to serve on the Board of Directors of BBO. Plaintiffs assert, among other things, that the Mack-Cali Defendants breached fiduciary duties to BBO, its minority shareholders (other than the REITs) and its creditors by approving a spin-off of BBO’s assets to a newly created entity, and approving the sale of BBO’s remaining assets to Yipes, Inc., both for allegedly inadequate consideration. Plaintiffs seek an unspecified amount of compensatory and punitive damages in connection with their fiduciary duty claims. In addition, Plaintiffs seek to avoid all payments and other transfers made to the Mack-Cali Defendants within one year of BBO’s bankruptcy filing under various provisions of the Bankruptcy Code, and to obtain “turnover” of certain property under Section 542(b) of the Code. On July 8, 2003, the district court withdrew the reference of this proceeding to the bankruptcy court, and the action is now pending in the United States District Court for the District of Delaware. The Mack-Cali Defendants have denied the claims asserted in the Amended Complaint, and believe they have substantial defenses to the claims asserted against them. The Operating Partnership does not believe that the ultimate resolution of this matter will have a material adverse effect on the Operating Partnership’s financial condition taken as a whole.

The Operating Partnership is a defendant in other litigation arising in the normal course of business activities. Management does not believe that the ultimate resolution of these matters will have a materially adverse effect upon the Operating Partnership.

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GROUND LEASE AGREEMENTS
Future minimum rental payments under the terms of all non-cancelable ground leases under which the Operating Partnership is the lessee, as of March 31, 2004, are as follows:

Ground lease expense incurred by the Operating Partnership during the three months ended March 31, 2004 and 2003 amounted to $258 and $232, respectively.

OTHER
The Operating Partnership may not dispose of or distribute certain of its properties, currently comprising 140 properties with an aggregate net book value of approximately $1,799,345, which were originally contributed by members of either the Mack Group (which includes William L. Mack, Chairman of the Corporation’s Board of Directors; David S. Mack, a director of the Corporation; Earle I. Mack, a former director of the Corporation; and Mitchell E. Hersh, chief executive officer and a director of the Corporation ), the Robert Martin Group (which includes Martin W. Berger, a director of the Corporation; Robert F. Weinberg, a former director of the Corporation; and Timothy M. Jones, president of the Corporation) or the Cali Group (which includes John R. Cali, a director of the Corporation and John J. Cali, a former director of the Corporation) without the express written consent of a representative of the Mack Group, the Robert Martin Group or the Cali Group, as applicable, except in a manner which does not result in recognition of any built-in-gain (which may result in an income tax liability) or which reimburses the appropriate Mack Group, Robert Martin Group or Cali Group members for the tax consequences of the recognition of such built-in-gains (collectively, the “Property Lock-Ups”). The aforementioned restrictions do not apply in the event that the Operating Partnership sells all of its properties or in connection with a sale transaction which the Corporation’s Board of Directors determines is reasonably necessary to satisfy a material monetary default on any unsecured debt, judgment or liability of the Operating Partnership or to cure any material monetary default on any mortgage secured by a property. The Property Lock-Ups expire periodically through 2008. Upon the expiration of the Property Lock-Ups, the Operating Partnership is required to use commercially reasonable efforts to prevent any sale, transfer or other disposition of the subject properties from resulting in the recognition of built-in gain to the appropriate Mack Group, Robert Martin Group or Cali Group members.

13.    TENANT LEASES

The Properties are leased to tenants under operating leases with various expiration dates through 2020. Substantially all of the leases provide for annual base rents plus recoveries and escalation charges based upon the tenant’s proportionate share of and/or increases in real estate taxes and certain operating costs, as defined, and the pass through of charges for electrical usage.

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Future minimum rentals to be received under non-cancelable operating leases at March 31, 2004 are as follows:

14.    SEGMENT REPORTING

The Operating Partnership operates in one business segment — real estate. The Operating Partnership provides leasing, management, acquisition, development, construction and tenant-related services for its portfolio. The Operating Partnership does not have any foreign operations. The accounting policies of the segments are the same as those described in Note 2, excluding straight-line rent adjustments and depreciation and amortization.

The Operating Partnership evaluates performance based upon net operating income from the combined properties in the segment.

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Selected results of operations for the three months ended March 31, 2004 and 2003 and selected asset information as of March 31, 2004 and December 31, 2003 regarding the Operating Partnership’s operating segment are as follows:

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