Impac Mortgage Holdings has significantly increased its originations of non-qualified mortgages and plans to package the loans into non-agency mortgage-backed securities. The nonbank originated $184.3 million of non-QMs in the first quarter of 2017, up from $86.3 million in the previous period. In all of 2016, Impac originated $289.6 million in non-QMs. The product accounted for 11.6 percent of Impac’s originations in the first quarter, up from a 2.8 percent share the previous period ...