Gambling is the same as cocaine. It has the same reward motivation pathway system. This means gamblers cannot stop themselves on their own once they cross that line. My father has lost everything to gambling and I have seen it first hand.
Do you have a contract? If you do this seems like it should be pretty straight forward. If not, it seems like this may be an expensive lesson. I would find a lawyer. I assume they have assets still (house) and you can attach a lien and there are rights you have. I would get educated on them and devise a plan.
If utilities are included yes, you should be able to use them as much as you see fit. Good luck and congrats on staying sober.