The Federal Housing Finance Agency this week directed Fannie Mae and Freddie Mac to provide a lot more transparency in the fledgling process of selling nonperforming loans, or NPLs, and to make sure borrowers are taken care of in the process. Freddie this week announced details on its second NPL sale; Fannie has not yet done such a transaction. But both government-sponsored enterprises are expected to emphasize selling their less-liquid assets, such as NPLs and non-agency mortgage securities, as they continue to downsize their retained portfolios. The new guidelines cover...