The rising delinquency rates for FHA-insured mortgage loans could spell trouble down the road for the FHA as it struggles to shore up its dwindling loss reserves, according to a new Fitch Ratings analysis. But the chief economist for the Mortgage Bankers Association has a slightly different take on that issue. Fitch analyst Brian Bertsch said a growing gap between seriously delinquent (90-day past due) guaranteed and non-guaranteed loans could presage future losses that could prompt the FHA to restrict loss claims and force banks to buy back defaulted loans. This could be the scenario ...