MEXICO CITY–(BUSINESS WIRE)–A.M. Best has assigned a Financial Strength Rating of A- (Excellent), a Long-Term Issuer Credit Rating of “a-” and the Mexico National Scale Rating of “aaa.MX” to Stewart Title Guaranty de México, S.A. de C.V. (STGM) (Mexico). The outlook assigned to these Credit Ratings (ratings) is stable. The ratings reflect STGM’s balance sheet strength, which A.M. Best categorizes as strong, as well as its strong operating performance, neutral business profile and appropriate