 OLDWICK, N.J.--BUSINESS WIRE--AM Best has affirmed the Financial Strength Rating of A Excellent and the Long-Term Issuer Credit Rating of a of First Guard Insurance Company First Guard Venice, FL. The outlook of these Credit Ratings ratings remains stable. First Guard is a subsidiary of Biglari Holdings Inc. NYSE: BH. The ratings reflect First Guards balance sheet strength, which AM Best categorizes as strongest, as well as its strong operating performance, neutral business prof 