Subservicing vendors increased their contracts by 23.1 percent in terms of dollar volume over the past year and now process an estimated $1.12 trillion of home mortgages, according to exclusive survey figures compiled by Inside Mortgage Finance. When it comes to market share, subservicers control 12.3 percent of all U.S. housing receivables. According to interviews with industry executives, compliance costs are...[Includes one data chart]