GMACCM Mortgage Trust I 1999-E, 1999-F, 1999-G Rated `AAA'.

NEW YORK--(BUSINESS WIRE)--Sept. 30, 1999--

GMACCM Mortgage Trust I's $78,706,320 variable rate class a insured notes, series 1999-E; $82,162,696 variable rate class A insured notes, series 1999-F; and $81,390,780 variable rate class A insured notes, series 1999-G are rated `AAA' by Fitch IBCA.

Each series is offered separately by private placement pursuant to Rule 144A of the Securities Act of 1933. These ratings address the likelihood of timely payment of interest and principal. The ratings do not address the possibility that the holders of the notes might suffer a lower-than-anticipated yield, or the receipt of default interest, prepayment premiums, or excess interest.

The series 1999-E notes represent beneficial ownership interests in a trust whose primary assets are six variable rate mortgage loans secured by six properties. Two of the properties are office facilities, representing 46% of the pool asset balance, with two multifamily properties comprising 31% of the balance, one hotel property representing 15% of the pool, and the remaining 8% secured by one industrial property.

The series 1999-F notes represent beneficial ownership interests in a trust whose primary assets are 11 variable rate mortgage loans secured by 11 properties. Four of the properties are hotels, representing 56% of the pool asset balance, with four multifamily properties comprising 32% of the balance and the remaining 12% secured by three industrial properties.

The series 1999-G notes represent beneficial ownership interests in a trust whose primary assets are seven variable rate mortgage loans secured by 10 properties. Two of the properties are hotels, representing 49% of the pool asset balance, with six multifamily properties comprising 38% of the balance and the remaining 13% secured by two industrial properties.

The ratings reflect the credit enhancement provided to each series of class A notes by two separate insurance policies issued by American International Specialty Lines Insurance Company (AISLIC), an indirect wholly owned subsidiary of American International Group Inc. (AIG). Fitch IBCA rates AIG `AAA' Long-term and `F1+' Short-term.

Fitch IBCA also assigns its `AAA' rating to the claims-paying ability of AISLIC.

The insurance policies provide for the timely payment of principal and interest on the class A notes to the extent that there is a payment shortfall from the underlying commercial mortgage assets. The insurer indemnifies the trustee for each series, LaSalle Bank National Association, for the benefit of the noteholders for any periodic loss with respect to each payment date.

Other positive features of the transactions include the integrity of the legal and financial structures, including master and special servicing by GMAC Commercial Mortgage Corporation, rated `CMS3' and `CSS1' by Fitch IBCA, respectively.

A negative factor is that the ratings are dependent solely upon the underlying credit of the provider of the insurance policies. Any adverse conditions experienced by American International Specialty Lines Insurance Company or American International Group Inc. may have an adverse effect on the ratings on the Notes.