Our lease/purchase ended and we couldn't obtain a loan. The landlord kept our deposit for "breech of contract" and raised our rent 20% with no notice in October. I advised him we could not afford it and would have to move. I told him in December that we would be out in January which we are. I want to prorate the month less the overpayments he charged for the 3 months. He says no that he keeps everything and we still have to pay the full amount. Who's correct? He said he will take us to court and sue.