Hi, Andrew.
I can assure you that Tom Buscaglia is legit. I've met him several times at game industry gatherings, and he genuinely cares about indie game devs. You can read his bio at gameattorney.com. You can email him at thb at gameattorney.com if you want to get assurance from the horse's mouth.
I see that he has a couple of commercial links at the gamedevkit.com home page. I wouldn't click on those, but I would explore the site, click the links at the right, see if the kit contains stuff you need for your business. The kit costs just under $300, which is (as he says) less than many attorneys' hourly rate. Using the kit could save on attorney costs, but you may still need to consult an attorney. There are numerous attorneys experienced with games. There's a list on gamedev.net, in the Business and Law forum: https://www.gamedev.net/forums/topic/644761-game-attorneys/.
You can contact a number of them to inquire about their rates for an introductory call to see who's the best fit for your needs.
Good luck with your venture!