Rules proposed by federal regulators to establish qualified mortgage and ability-to-repay standards would severely limit the originations of alternative mortgages, including certain ARMs, according to lenders. Consumer advocates, meanwhile, are calling for even more restrictive underwriting standards than those proposed by the Federal Reserve. In April, the Fed proposed strong ability-to-repay requirements that expand upon existing rules for higher-priced mortgages, include stringent penalties for violations, and would apply to ...