California law, you must

[no_such_reality]

California law, you must provide receipts.

And for personal labor, the hourly rate must be reasonable with an itemized list of the work performed and time on each.

http://www.dca.ca.gov/publications/landlordbook/sec-deposit.shtml

We just used a Temecula area crew to do a move in/ move out cleaning. Something like $299. Took it from a gross mess to we’d move in clean.