Sellers moving out w. Sub2

I’m going through my sales contract and wanted to know what folks do about having their sellers move out. In my contract I say that I have 30 days to rescind the contract and deed the property back to the seller - giving me time to find a t/b. So, when do I get them to move? Is it right away - 5 -7 days of closing - or do I wait until I get a t/b under contract? I don’t want the Sellers to have to move out, and the deal to fall through - but I would like the place clean, panited, fixed for showing my potentiall T/Bs.
What do you all think?