Bank of America has made a break from most of the other big banks in terms of sending conforming mortgages to the government-sponsored enterprises. Officials at the bank said BofA is retaining more of its GSE-eligible loans, though the strategy can result in short-term decreases to mortgage-banking income. “We believe retaining these mortgages will provide better economics over time, plus retention deepens our relationship with these customers,” Paul Donofrio, BofA’s chief financial officer ...