Make sure when cutting locks that you always use safety goggles or a protective face shield. The grinding disc can sometimes explode and come apart and fly hundreds of feet. Always use a pair of vise grips to secure the lock while grinding the lock off.
We find it a good practice to inventory from the door, record the entire process with tripod and video we prefer to have two people present at time of inventory and then use a unique one-of-a-kind seal (Chateau) along with a facility over lock.
It's a good idea to include a range of value that you think may be obtained at auction, this evaluation is a handy tool when it comes time to negotiate with a tenant that owes you money. If the Tennant owes you substantial money but the value is not there, then you can accept less money and know that you're still getting the most money at the end of the day.
In the event a
former tenant saves their unit and accuses you or your managers of going
inside the unit and removing items, you can simply show them the video
and take it to court with you if needed.