OLDWICK, N.J.--( BUSINESS WIRE )-- A.M. Best Co. has placed under review with negative implications the financial strength rating (FSR) of A- (Excellent) and issuer credit ratings (ICR) of "a-" of the subsidiaries of Meadowbrook Insurance Group, Inc. (MIGI) (Southfield, MI)[NYSE: MIG], which operate under an intercompany reinsurance pooling agreement. A.M. Best also has placed under review with negative implications the ICR of "bbb-" of MIGI. (See below for a detailed listing of the companies and ratings.)