OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has affirmed the Financial Strength Rating of A (Excellent) and the Long-Term Issuer Credit Rating of “a” of BMO Life Assurance Company (BMOLAC) (Toronto, Canada). The outlook of these Credit Ratings (ratings) is stable. BMOLAC is ultimately owned by the Bank of Montreal (BMO). The ratings reflect BMOLAC’s balance sheet strength, which A.M. Best categorizes as very strong, as well as its strong operating performance, neutral business profile and appropr