You don't say whether you just want to enjoy yourself and (I hope) give pleasure to others, too - or whether you hope to earn your living that way.
In either case, it might be useful to get trained by a trustworthy, well established dominatrix.
If you want to go professional, get legal advice! This is very important indeed. I gather that there are a few lawyers who specialize in this kind of area.
You may also want to take some classes in dungeon management. :)
Joncey