Old Republic International Corp. intends to re-enter the mortgage insurance business with a revamped business risk model, fresh capital and a new subsidiary if it obtains approval from state regulators and its two major policyholders, Fannie Mae and Freddie Mac. The Chicago-based company, which also operates general and title insurance segments, still maintains a long-term strategic interest in mortgage insurance despite the negative trends in the sector, according to company executives during a recent conference call with analysts and investors. “But at this point, we have little, if any, idea as to the...