Fannie Mae and Freddie Mac will launch pilot programs to purchase personal loans tied to manufactured housing under the final duty-to-serve regulation released this week by the Federal Housing Finance Agency. The duty-to-serve requirement was mandated by Congress eight years ago but has never been implemented. The government-sponsored enterprises will devise three-year plans for serving low- and moderate income households in three underserved areas: manufactured housing, affordable housing preservation and rural housing. Like the annual affordable housing goals set for the GSEs, the duty-to-serve requirement does not include...