MEXICO CITY–(BUSINESS WIRE)–A.M. Best has assigned a Financial Strength Rating of B+ (Good) and a Long-Term Issuer Credit Rating of “bbb-” to Acerta Compañia de Seguros, S.A. (Acerta) (Panama). The outlook assigned to these Credit Ratings (ratings) is stable. The ratings reflect Acerta’s balance sheet strength, which A.M. Best categorizes as very strong, as well as its marginal operating performance, neutral business profile and marginal enterprise risk management (ERM). Acerta’s balance shee