Have they offered you cash for keys?
Sounds like they want you out so they can sell the place. Ask for the $575 you paid for January, any amounts you have in security deposits and and extra $1000 for your trouble to leave cleanly & quietly before the end of the year...just a thought...
It seems that you are paying rent below market value and Fannie Mae wants the property back so they can either sell it or rent for more money. Try to negotiate a new lease that will make sense for all parties. Your lease is expiring in a month and you will be better off trying to stay in the same place and save the cost of moving.
Good luck !
The Marie Souza Team\