For the past five years, the IBM-owned Seterus has been Fannie Mae’s “go-to” guy when it came to default management servicing, especially in regard to short sales, but the company’s future looks cloudy as problem loans run off the government-sponsored enterprise’s books. At the end of 2014, Seterus serviced roughly $27 billion of residential loans, according to data compiled by Inside Mortgage Finance. At one time, sources say, the company serviced at least ...