Unfortunately, if your name remained on the lease after you moved out, the mere fact that you moved doesn't relieve you from liability under the lease. This is one of the perils of being a co-tenant. If the fees were to remedy damages caused by your ex-roommate, then you might be able to recover the fees from him/her, but it won?t change the fact that you are still responsible to the landlord. You should have an experienced attorney review your lease and the notices you've received from the landlord to be sure, but from your very brief description, it sounds like you are still on the hook to the landlord.
Answered on Sep 30th, 2017 at 5:31 AM