Regulators should tread lightly when considering new disclosures or onerous suitability requirements for companies that originate nontraditional mortgages, industry groups have cautioned. The warnings came in response to a series of recently concluded hearings that were convened by the Federal Reserve Board to examine consumer protections and borrower behavior in the home-equity loan market. The Fed is charged with rulemaking authority for the federal Home Ownership and Equity Protection Act...