Nationstar Mortgage clarified that the non-agency MBS it plans to issue in the second quarter of 2013 is an asset-backed security with servicing advances from non-agency mortgages. Genworth U.S. Mortgage Insurance, a unit of Genworth Financial, Inc., announced on Friday that it will offer 24 training classes in April to help mortgage lenders and servicers improve their efficiency and build their business. Fannie Mae President and CEO Tim Mayopoulos said this week that it would be a “mistake” for official Washington to allow the prospect of the newly profitable GSEs to continue to slow walk efforts on housing finance reform.