Uncertainty about risk in a rapidly changing regulatory environment and the still destabilized economics of the housing market continue to keep private capital from returning to the mortgage market, according to industry officials at this week’s American Mortgage Conference sponsored by the North Carolina Bankers Association. “Everybody’s very concerned about the role of the government, that the government is supporting too much of the marketplace today,” said Meg Burns, senior associate director for housing and regulatory policy for the Federal Housing Finance Agency. “But it’s really hard to envision how people can pull back from that government support when we don’t actually understand not only who holds the credit risk but what the requirements are for retaining that risk in terms of capital.” All of the Dodd-Frank Act regulations that are still in play are...