If you are in fact owed a portion of that money and the landlord is not even claiming that she kept it due to damages or unpaid rent, then you may want to consider taking her to small claims court. The maximum you can sue for is $5000. You would want to gather whatever evidence you can first, such as a copy of the lease, any letters between you and the landlord, etc.
Answered on Jun 03rd, 2013 at 9:30 PM