New loan production in 2005 may be just keeping even with the pace set in 2004, but many of the top mortgage lenders have been able to beef up their servicing businesses by acquiring bulk deals or tapping into hot new product markets. According to data collected by Inside Mortgage Finance, an affiliated newsletter, top lenders so far in 2005 have increased their aggregate servicing balance by 7.9 percent – while the overall market has… [One data table included]