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10-K - FORM 10-K - MERCANTILE BANK CORPk50101e10vk.htm
EX-31 - EX-31 - MERCANTILE BANK CORPk50101exv31.htm
EX-32.1 - EX-32.1 - MERCANTILE BANK CORPk50101exv32w1.htm
EX-99.1 - EX-99.1 - MERCANTILE BANK CORPk50101exv99w1.htm
EX-32.2 - EX-32.2 - MERCANTILE BANK CORPk50101exv32w2.htm
EXHIBIT 23
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
Board of Directors and Shareholders
Mercantile Bank Corporation
Grand Rapids, MI
We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (Registration Nos. 333-59154, 333-103376, 333-0108929, and 333-107814) and Form S-8 (Registration Nos. 333-52620, 333-91434, 333-99853, 333-103242, 333-117763, 333-119767, 333-138328, 333-152254, 333-158280, and 333-170026) of Mercantile Bank Corporation of our reports dated March 14, 2011 relating to the consolidated financial statements and the effectiveness of Mercantile Bank Corporation’s internal control over financial reporting, which appear in this Annual Report on Form 10-K.
         
     
/s/ BDO USA, LLP      
BDO USA, LLP     
Grand Rapids, Michigan
March 14, 2011