Increases in mortgage insurance premiums and adjustments to loan programs will likely make FHA-insured mortgage loans more costly and difficult to obtain for future FHA borrowers, according to industry participants. Lenders estimate that about 40 percent of home purchases and even a larger share of first-time homebuyer purchases are insured by the FHA. They say the premium changes could have a detrimental impact on homebuyers in 2012. The FHA has increased its premiums in order to shore up its books in light of high delinquency and foreclosure rates and to strengthen its depleted capital reserves, which have ...