Originations of loans that don’t meet standards for qualified mortgages have been off to a slow start but officials at Impac Mortgage Holdings suggest that non-QM lending is poised for growth. Joseph Tomkinson, Impac’s chairman and CEO, said the government-sponsored enterprises’ dominance of mortgage originations has limited non-QM originations. “We knew going into this that it would be a slow growth,” he said this week during a call with investors ...