How Long Does The Landlord In Virginia Have To Return Your Deposit If You Gave 30 Day Notice And Cleaned The Property And Vacated 10 Days Earlier?

How long does the landlord in Virginia have to return your deposit if you gave 30 day notice and cleaned the property and vacated 10 days earlier? And he tries to stiff you with a bill for the normal wear on the carpet and painting all of which was documented to him in January and showed him in February during a walk through. Also are they required to do a walk through with you?