How long does a former tenant have to retrieve personal belongings after moving away from a rental property?

The answer varies depending on the circumstances of the departure. If you vacate early but continue to pay on your lease and hold your keys, you retain control of the premises the same as if you were still residing there. If you give proper notice, you have until your notice periods ends, unless you and the Landlord work out something different by agreement. If you leave without notice or otherwise break your lease, the respective rights of you and your landlord are generally set out in the lease.