Washington, D.C. . The Federal Home Loan Mortgage Corporation (FHLMC), commonly known as Freddie Mac, is a publicly traded, government-sponsored enterprise (GSE), headquartered in Tysons, Virginia. The FHLMC was created in 1970 to expand the secondary market for mortgages in the US. Along with its sister organization, the Federal National Mortgage Association (Fannie Mae), Freddie Mac buys mortgages, pools them, and sells them as a mortgage-backed security (MBS) to private investors on the open market.(2). Items Sold "AS IS". No returns accepted.