Fannie Mae and Freddie Mac late last week announced another round of changes in the Home Affordable Refinance Program for underwater borrowers, including more liberal repurchase standards that some say may spur lenders to refinance other servicers’ loans. For HARP loans sold to the government-sponsored enterprises on or after Jan. 1, 2013, repurchase risk will be lowered if the borrower stays current in the loan for 12 months. Under a revised repurchase policy announced last week, representation and warranty risk will be eased for non-HARP loans that stay current for 36 months. Effectively immediately, the government-sponsored enterprises reduced...