There are new signs of life in the market for mortgage servicing rights, where observers suggest real estate investment trusts could become significant buyers and the government-sponsored enterprises are facilitating more transfer activity. Newcastle Investment Corp. recently announced a $44 million investment in excess mortgage servicing rights, done jointly with Nationstar Mortgage, a mortgage special servicer. Both companies are affiliates of Fortress Investment Group, a global investment management firm. Newcastle, a commercial mortgage real estate investment trust, acquired 65 percent...