Fannie, Freddie may write down $21 billion due to U.S. tax cut: BMO

File photo: A stands outside Fannie Mae headquarters in Washington February 21, 2014. REUTERS/Kevin Lamarque U.S. mortgage finance giants Fannie Mae (FNMA.PK) and Freddie Mac (FMCC.PK) may write down $21 billion of tax-related assets if there is a deep cut in ... More »