MN tenant possessions/move-out question

[Molly Turner]

I'm purchasing a rental property and the current tenant's lease will be done on the day of closing.  They are already out and have left some items in the house.  As the new owner of the property (same day the current lease ends), do I need to track down those tenants to sign something that I'll 'buy' the stuff they left behind for $1, so I can donate/dispose of their items soon?  MN law requires items left behind to be held for 28-29 days, I believe.  Since I'm not their landlord, and because the property changed hands on the last day of the lease, does this law even apply in this situation?