Valuations of mortgage servicing rights could take a severe beating if scores of banks dump MSRs to avoid costly new capital requirements under rules to implement controversial international guidelines that have been proposed by U.S. banking regulators. Proposals to implement the Basel III capital rules for U.S. banks would be a game-changer for the mortgage industry, said David Motley, president of Colonial National Mortgage, during a panel session at the Mortgage Bankers Association annual convention last week. As proposed, the Basel III rules “would restrict our ability to grow and may cause us to shrink,” he said. The complex set of Basel III proposals would affect...