I don't have any, but you should have a non-compete contract with your employees,,, I know many multi op guys who do,,, says something like you can't start your own bisness within one year of leave XYZ DJ Company...
also you need to think about what is important to you, from an owner standpoint for your manual...
You need to line out how they will be paid,,,, what expences you cover, what about damaged gear, travel, car stuff and even clothing. If you require them to wera a company logo polo shirt, I think you need to supply them (I'm not sure on that one)
Are you going to supply gear? If not what do they need to have in their system to meet your requirements.
What about training? Are you hiring people who are already DJ's to work for you? Can they work for someone else? Are you going to keep them busy enough?
If you train them, do you pay them for the time it takes to train them in the office?
What if their friend asks them to DJ a party for them on some Saturday night and they have their own gear... can you stop them? Do you take a loss because you can't book them?
Just a few things off the top of my head....
not that you asked,,, but things that should be in a manual...