
Quoting
Mr. Knowitall
If you signed a contract with your landlord indicating that you would vacate at a certain point in time, and that you wanted them to sublease your unit from that point in time forward, then that's what you agreed to have happen -- and given that most landlords have little interest in finding subtenants, your landlord apparently did a very good job carrying out your wishes. They have no obligation to keep notifying you of the status of their search, although obviously you are free to make all the inquiries you choose to make.
If you wanted to rescind that agreement, the time to do so would have been before the landlord found a subtenant.
If you try to back out of your contract, you can be liable for damages to your landlord -- so you had best read the document you signed under which you agreed to the subtenancy, or have it reviewed by a lawyer. If you want to share the key language here, you may do so -- but recall, we cannot interpret contract language that we have had no opportunity to read.