Fannie Mae and Freddie Mac are moving forward slowly on the common securitization platform even after the Federal Housing Finance Agency recently narrowed the project, according to an agency official. Bob Ryan, a special advisor to the FHFA, told attendees at last week’s Mortgage Bankers Association Secondary Market Conference that the development of a common GSE securitization platform would take several years. The Finance Agency’s 2014 strategic plan for the GSEs includes clarifying the scope of the CSP project, which has been in the works for over a year.