OLDWICK, N.J.–(BUSINESS WIRE)– #insurance–AM Best has affirmed the Financial Strength Rating of A- (Excellent) and the Long-Term Issuer Credit Ratings of “a-” (Excellent) of R.V.I. Guaranty Co., Ltd. (Bermuda), and its subsidiary, R.V.I. America Insurance Company (Delaware) (collectively known as RVI). The outlook of these Credit Ratings (ratings) is stable. The ratings reflect RVI’s balance sheet strength, which AM Best assesses as strongest, as well as its adequate operating performance, limited busine