Mortgage lenders that sell loans to Fannie Mae and Freddie Mac are still focused on delivering single-family mortgages with relatively low credit risk, according to an Inside Mortgage Trends analysis of loan-level data from the government-sponsored enterprises. In the second quarter of 2015, 66.4 percent of loans sold to the GSEs had credit scores of 740 or higher. That was up from 64.4 percent in the first quarter and 60.6 percent during ... [Includes one data chart]