OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has revised the outlook to negative from stable and affirmed the Long-Term Issuer Credit Rating (Long-Term ICR) of “bbb” and the Long-Term Issue Credit Ratings of AmTrust Financial Services, Inc. (AmTrust) (New York, NY) [NASDAQ:AFSI]. Concurrently, A.M. Best has revised the outlooks to negative from stable and affirmed the Financial Strength Rating (FSR) of A (Excellent) and the Long-Term ICRs of “a” for the members of the AmTrust Group. A.M. Best also