Closed on Duplex - Previous Tenant Problem, help me

[Ryan King]

Just closed on Monday. The people who were renting out the side I'm going to be renovating/occupying left a bunch of stuff in it; couches, mattress, food in the fridge, trash in various places, etc. Not to mention the place is filthy, no cleaning was done at all. They couldn't get a hold of them to get them to come get it before we closed. Today (Wed) they got a hold of one of them and he wants to make arrangements to come get the stuff and clean it up.

In my opinion, they had their chance. I don't want them in my property (I really don't want them knowing I'm renovating it and not staying there overnight yet). Honestly, I want the security deposit because its extra work I have to do now. Do I legally have to give them a chance to come get their stuff? Am I entitled to their deposit (the previous owner has it)? What would YOU do?

Thanks for any suggestions/help!