Mortgage lenders made it tougher for borrowers to obtain mortgage credit in the second quarter of 2015 compared to the first three months of the year. The mortgage credit availability index overall fell slightly in the second quarter to 5.3, down from 5.5 in the prior quarter, although that level still remains above the low of 4.6 in the third quarter of 2013, according to the Urban Institute’s Housing Finance Policy Center (HFPC). The HFPC uses...