Conceivably you can charge your former tenants rent for the items that they left behind in the unit they occupied even though they were not actually using the premises for occupation. The issue is what is the fair rental value of the premises to store the items that were not taken by them.As to the damaged door issue, I would debit the costs of repair for such from their security deposit and submit an invoice and receipts to them within 21 days or so after move out.As to charging rent for the storage of the items left behind, I would personally write such off from a business perspective in that such could cause more problens than it is worth to you in the long run.