What does your lease say about the return of your security deposit? The lease or security deposit receipt must "clearly state ... the terms and conditions under which the payment was made" and the deposit can only be used to defray "expenses properly incurred under the terms and conditions of the security deposit agreement." 14 DCMR 308.6 and 309.1(2). If you substantially previal in court or at the D.C. Office of Administrative Hearings, your landlord may be ordered to pay your attorney's fees as well. D.C. Code 42-3509.02.
LEGAL DISCLAIMER Mr. Borbely is licensed to practice law in the District of Columbia. His response in this forum is not legal advice and does not create an attorney/client relationship. The response is in the form of legal education and is intended to provide general information about the matter in question.
You state that you're being charged for normal wear and tear. It is not clear from your factual scenario that these items are normal wear and tear. It seems rather clear that many of items the landlord is charging you for are not normal wear and tear. The point here, of course, is that this would be a penultimate issue for a court to decide in any civil proceeding. As with many court cases, the cost of the process in making the decision is often more expensive than the matters at issue. Rather than spending resources attempting to determine if your defense if valid, you may want to retain an attorney to attempt to come to a monetary settlement with your landlord.