Small servicers have significantly outpaced larger servicers in terms of growth in the past year. While many nonbanks focused on servicing nonperforming mortgages in the past, the more recent growth by small servicers has been in performing mortgages, including those originated in-house. The total unpaid principal balance of single-family mortgages outstanding at the end of the third quarter of 2016 was $10.11 trillion, up by 1.6 percent, according to the Federal Reserve. Growth was...