Fannie Mae and Freddie Mac continued to whittle down their caseload of unresolved mortgage repurchase requests during the first quarter of 2014, according to a new Inside Mortgage Trends analysis of disclosures by the government-sponsored enterprises. Fannie and Freddie had $3.23 billion of pending and disputed buyback demands outstanding at the end of March, down 30.3 percent from the previous quarter. Although both GSEs ... [Includes two data charts]