Some mortgage servicers have done a better job than others in adjusting to a market environment of high default and foreclosure rates, according to a new Barclays Capital report, and the difference can have a significant impact on the value of non-agency mortgage securities they service. Servicing is not as easy as it used to be and has come much more under the spotlight, Barclays noted. Servicers have to work with distressed borrowers to determine whether loan modification, refinance or liquidation is the most appropriate response. Servicer performance can be shaped by the composition of...