Any suggestions on why a cat bites? Draws blood and hangs on to people like a monkey. Can't afford law suit

Answers:
My guess is that he has been doing this since he was a little kitten, and no one has trained him differently. If it were another cat, they have an innate sense of how far to go before harm is done. So you need to train him. He already has been neutered, so that should have calmed him down some.
He needs to get disapproval for what is is doing. Punishment is not what you want to do, since he has no idea of the damage he is doing.
You get his attention immediately when it does it, usually by a gentle tap on the nose and the word NO! Since this has probably been going on for some time, it will take awhile. A squirt bottle really isn't of use here, since the quarters are too close. A squirt bottle is good when he is on the counter, etc.
Most cats want to please, and hearing the word NO and a tap on the nose will often change behavior. If he is hanging on someone else, you go over and say NO and a tap on the nose. Don't get into a punishment tap. It is not his fault.

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They will mellow out when you spay or neuter them. Mine did.

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Wow, keep him inside. It sounds like he does not know play boundries. Train him not to do that. It can be done.

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Oh, Boy, if this is your cat , you have a problem. keep the feline isolated from others especially children . Cat bites are extremely dangerous and should always be treated by a medical professional and oral antibiotics .

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My cats name is Monkey and she does that too which is why she got the name. Some cats are just plain nuts. I don't think a friend would sue you if that happened, at least I would hope not. You could try to use the spray bottle with water when he bites. Or just a firm clap of the hands and a loud "NO"...they don't like that either.