As a vendor I would probably say no, they will have to pay (or forfeit) one or two weeks rent to the property manager to start the lease, they will have to choose a property manager, make sure they place is up to scratch for putting on the market; there's not really anything in it for them (obviously this all depends on many factors like location, type of property etc.).

Ask if you can get as much done during settlement to make sure it's ready from day one. Things like smoke detectors, water efficiency (if you want to charge usage), paint, cleaning, repairs, selecting a property manager. Then if you find someone at the first viewing who wants to move straight in, it's ready.

Cheers!

Oh, and hello this is my first post here! I'll do an introduction somewhere in one of the other sections.