The lower loan limits instituted this month for conforming mortgages opened a number of regional opportunities for non-agency lenders. As of Oct. 1, 250 counties have lower government-sponsored enterprise loan limits compared with the conforming loan limits of 2010, according to an analysis by affiliated publication Inside Mortgage Finance. Michael Fratantoni, vice president of single-family research and policy development at the Mortgage Bankers Association, said the portion of the market newly eligible only for non-agency financing is significant in comparison to the amount of non-agency jumbo originations in recent years. ... [includes one data chart]