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IDLAND
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ERVICES

March 8, 2005
Via UPS (312) 904-7323
Ms. Barbara L. Marik First Vice President    LaSalle Bank National Association 135 South LaSalle Street, Suite 1625 Chicago, IL USA 60603-0000
GMAC Commercial Mortgage Securities Inc., Commercial Mortgage Pass-
Through Certificates, Series 2004-2
Pooling and Servicing Agreement

OFFICER'S CERTIFICATE
Pursuant to the requirements of that certain Pooling and Servicing Agreement governing the referenced Trust (the "PSA"), it is hereby certified that (i) the undersigned has completed a review of the servicer's performance of its obligations under the PSA for the preceding calendar year; (ii) to the best of the undersigned's knowledge on the basis of that review the servicer has fulfilled all of its obligations under the PSA throughout such period in all material respects; (iii) to the best of the undersigned's knowledge, the subservicer, of the servicer under the PSA, if any, has fulfilled its obligations under its sub-servicing agreement in all material respects; and, (iv) no notice has been received from any governmental agency or body which would indicate a challenge or question as to the status of the Trust's qualification as a REMIC under the U.S. Code.
/s/ Steven W. Smith  3/8/05  Steven W. Smith
Date
Executive Vice President

A member of The PNC Financial Services Group
10851 Mastin Suite 300 Overland Park Kansas 66210
www.midlandls.com
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Attn: Managing Director, Commercial Servicing Operations GMAC Commercial Mortgage Corporation 200 Witmer Road Horsham, PA 19044-8015 Attn: Managing Director Servicing GMAC Commercial Mortgage Corporation 200 Witmer Road Horsham, PA 19044-8015 Attn: Commercial Mortgage Surveillance Moody's Investor Services, Inc. 99 Church Street, 4th Floor New York, NY 10007-0000 Attn: CMBS Surveillance Standard & Poor's Ratings Services 55 Water Street, 41st Floor New York, NY 10041-0000
GMAC Commercial Mortgage Securities Inc., Commercial Mortgage Pass-Through Certificates, Series 2004-2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
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