All of the properties have key codes lock boxes or owners around that will leave a key in the unit with the door unlocked. Generally when guests ask for a late check in we tell them They can check in after our check in time frame, but we won't be able to have an employee support them if issues occur.
99% of the time check ins after our supported time period are hassle free. We have had a few guest show up at 2 in the morning and not be able to get in. It's at their own risk.