I recently moved out of my apartment in North Carolina and I gave 30 days notice instead of the 60 days that is on my lease. I knew that I was liable for the next 30 days if somebody did not move in. However, I called the management company on the 13th, pretending to be inquiring as to whether or not it had been rented yet, and they said that a new lease was signed that day. Now I have received a letter stating that I owe them rent up until the 28th. Since my term began on the day I signed the lease I thought that was protocol. My question is when does a rental period begin? Am I still liable once somebody else has signed a new lease for that place?