The wholesale channel isn’t something to shun, according to officials at Stonegate Mortgage. The nonbank is tapping all three origination channels in an effort to increase its holdings of mortgage servicing rights while controlling origination costs. Stonegate had $2.42 billion in originations in the first quarter of 2014, up 27.4 percent from a year ago, making the publicly traded mortgage banker one of the relatively few lenders to increase its production in that span ...