OLDWICK, N.J.--(BUSINESS WIRE)--A.M. Best has assigned a financial strength rating of A- (Excellent) and an issuer credit rating of "a-" to Farm Mutual Reinsurance Plan Inc. (FMRP) of Cambridge, Ontario, Canada. The outlook assigned to each rating is stable. The ratings reflect FMRP's excellent risk-adjusted capitalization, significant improvement in operating profitability during the most recent five-year period, and strong market position operating as a reinsurer of farm mutuals in Canada. Pa