no big deal there, that is with any business.
I am sure he will need a federal tax id, probably a piece of paper from what ever state he is in, and all the other business stuff that goes with owning a business.
getting the piece of paper saying you are a business, is really pretty easy to do, and I would think he would want to start a llc or corporation to protect himself. I own a couple of them, and it is easy to set up.
But being an entrenpenour I applaud others who have the same spirit. Go get er done. And yes you may lose everything, but that is part of the challenge. And besides sleep at night is over rated.
start small to minimize your exposure and go for it.