Painter wants to stay at night

[Sam Leon]

Need some advice here.

Hired a painter to paint a vacant property.

Never worked with him before.

Not a big job contract about $1000 plus materials.

Painter says on first day he can get more done if he can stay over at the vacant property, he can bring in a sleeping bag and work longer hours.

I don't think this is a good idea.

First I have some power tools at the place.

I really don't think I want him sanding the ceiling at 3am...

I don't want to hand over the keys either.

There may be liaility issues as well.

Thoughts, bad idea or am I being too paranoid and is not really a big deal?