A/B

STRUCTURE

A’s – Cash available for distribution up to 10% Preferred B’s – Net loss until capital account reaches zero +

No Operating Distributions

The Alstom Power building was sold on March 15, 2005, following the lease renewal and extension with Alstom Power. Net sale proceeds of $4,545,538 were allocated to the Fund. The November 2005 distribution included $3,449,511 of these proceeds. The remaining $1,096,027 was distributed to the limited partners in August 2007.

14079 Senlac Drive was sold on November 29, 2007, and net sale proceeds of $2,308,640 were allocated to the Fund. Of that amount, $1,529,614 was distributed in May 2008, and the balance of the funds is being reserved at this time to fund anticipated capital at the remaining assets in the Fund.

The Avaya building was sold on October 15, 2010, and $1,993,551 in net sale proceeds was allocated to the Fund. These proceeds are being reserved at this time to cover anticipated capital at the remaining assets in the Fund.

The 305 Interlocken Parkway property is located in the Broomfield submarket of Denver, Colorado. The entire building is leased to Flextronics USA, Inc. through August 2011. Flextronics intends to vacate the building at lease expiration. We are actively marketing the space in the building for long-term lease.

The 360 Interlocken Boulevard property was sold on June 2, 2011, and $3,390,578 in net sale proceeds was allocated to the Fund.

The Iomega building was sold on January 31, 2007, and net sale proceeds of approximately $1,828,642 were allocated to the Fund. Of the proceeds, $858,255 was distributed to the limited partners in August 2007. The remaining $970,387 was distributed in May 2008.

The 1315 West Century Drive building was sold on December 22, 2006. Net sale proceeds allocated to the Fund totaled $3,145,720 and were distributed to the limited partners in August 2007.

The 15253 Bake Parkway building was sold on December 2, 2004, following the signing of a new 10-year lease with Gambro Healthcare. Of the net sale proceeds, $4,526,770 was allocated to the Fund, and $237,910 was used to fund the Partnership’s pro-rata share of the Gambro re-leasing costs. We distributed $2,488,372 of these proceeds to the limited partners in May 2005. The remaining proceeds were included in the November 2005 distribution.

The U.S. Cellular building is located in Madison, Wisconsin. Approximately 73% of the space is leased to U.S. Cellular through April 2013, and we are actively marketing the remaining vacant space for long-term lease.

Par

Value

Cumulative
Operating
Cash

Flow
Distributed⁽¹⁾

Cumulative
Passive

Losses^{(1 & 2)}

Cumulative

Net Sale

Proceeds
Distributed⁽¹⁾

PER “A”
UNIT

PER “B”
UNIT

These per-unit amounts represent estimates of the amounts attributable to the limited partners who have purchased their units directly from the Partnership in its initial public offering of units and have not made any conversion elections from Class A units to Class B units, or vice versa, under the Partnership agreement.

This estimated per-unit amount is calculated as the sum of the annual per-unit cumulative passive loss allocated to a Pure Class B Unit, reduced for Gain on Sale per unit allocated to a Pure Class B Unit.

Please refer to the disclosure related to the estimated unit valuations contained in the 1/31/2011 Form 8-K for this partnership.

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999