OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has upgraded the Financial Strength Rating to A- (Excellent) from B++ (Good) and the Long-Term Issuer Credit Ratings to “a-” from “bbb+” of AmFed National Insurance Company and its 100% reinsured subsidiary, AmFed Casualty Insurance Company, collectively referred to as AmFed Insurance Group (AmFed) (both domiciled in Ridgeland, MS). The outlook of these Credit Ratings (ratings) remains stable. The rating upgrades are based on AmFed’s improved risk-adjus