Yes, if you pre-paid for tenancy or occupancy which you never received, you can sue to recover the unused portion or amount of the rent. You can also recover your security deposit, and if your state--like most--allows double damages for security deposit violations by a landlord, you can look to recover the additional damages, too. Suing in small claims court would be a good option for total potential liabilty under $2,000; if the total owed exceeds that, you should retain an attorney. Good luck.