Tenant Present for Walk Through / Keys

[Scott Davidson]

Tenants lease ends today and did not provide 15 days notice for move out inspection as required in my state. They are planning to give us the keys at the move out inspection even though the lease explicitly states that keys must Be returned within 24 hours of lease end. Should I just let them come to walk through and get keys then or force them to return the keys before and let them walk through?