The Federal Housing Finance Agency late this week followed through on its promise to develop a post Fannie Mae and Freddie Mac secondary mortgage market infrastructure by releasing for public comment its proposed new securitization platform that could be used by either GSE, as well as by private issuers. The FHFA’s white paper proposed a framework for both a common securitization platform and a model pooling and servicing agreement. Public input on the proposal is due to the Finance Agency by Dec. 3.