Nationstar Mortgage and Walter Investment Management have focused most of their recent efforts on acquiring agency mortgages and increasing originations of such loans. The shift is due to increased competition for nonperforming mortgages along with the small amount of non-agency mortgages originated since 2008. In January, Walter acquired Fannie Mae mortgage servicing rights with an unpaid principal balance of $128.0 billion from Bank of America and Residential Capital. The servicer said it is handling ...