Fannie Mae and Freddie Mac buyback demands on Countrywide mortgages were more than double the amount sought on any other lender, but the key reason is that Countrywide securitized a lot more loans than anyone else from 2006 through 2008. A new Inside Mortgage Finance analysis of representation and warranties disclosures made by the two government-sponsored enterprises shows that some $16.22 billion of Countrywide mortgages were subject to buyback demands, both before and after the company was acquired by Bank of America in 2008. In a distant second place was Wells Fargo...(Includes one data chart)