OLDWICK, N.J.--(BUSINESS WIRE)--A.M. Best has affirmed the financial strength rating of A- (Excellent) and the issuer credit rating of “a-” of Wright National Flood Insurance Company (WNFIC) (San Antonio, TX). The outlook for both ratings is stable. The ratings of WNFIC (formerly known as Fidelity National Indemnity Insurance Company) reflect its strong risk-adjusted capitalization and favorable operating results, as well as the support provided by its ultimate parent, Brown and Brown, Inc. (NY