Mortgage lenders continue to gain share in the home-purchase market as investors and other cash buyers have become less prevalent and the supply of distressed properties declines. Some 562,000 new homes were sold in 2016, according to the Census Bureau and the Department of Housing and Urban Development. Mortgage financing was used for 95.0 percent of the sales, up from a 92.0 percent share the previous year. The cash share of new home sales hit...