A growing challenge for Fannie Mae and Freddie Mac is the “increasingly vigilant role” of the Federal Housing Finance Agency Office of Inspector General, according to an industry expert. “The FHFA Inspector General, like most IGs, takes his responsibilities seriously, but tends to view things as, if they’re not 100 percent right, then they’re wrong,” said Bob Bostrom, a partner at the SNR Denton law firm. “He has, I believe, had a chilling effect on the willingness of the enterprises, and the FHFA in some cases, to make business decisions,” the former Freddie official said during the American Mortgage Conference sponsored by the North Carolina Bankers Association. The best example of that occured at year-end 2010, when Fannie and Freddie both reached...