Despite the Federal Housing Finance Agency’s release of a long awaited study justifying its position against the writedown of underwater GSE mortgages, principal-reduction proponents, including House Democrats, appear poised to redouble their efforts to pressure the FHFA to see things their way.This week, the Finance Agency released its analysis of taxpayer losses to explain the FHFA’s policy decision to exclude principal forgiveness as a policy in favor of principal forbearance, the alternative that the GSEs currently apply to their underwater loans.As of June 30, 2011, Fannie Mae and Freddie Mac had nearly 3 million first-lien mortgages with outstanding balances in which the borrower owed more than the loan on the home was worth.