I would try to come up with your "ideal" outcome and ask about the possibility of that and what it would cost you in terms of time and money. I would also try to come up with an "acceptable" outcome to compare time and money for that. And I'd come up with an "unacceptable" outcome and ask about the possibility of that.
I'd find out what their policy on returning calls and emails is - like, do they return calls within 24 hours?
Try to get a feel for whether you can click with the attorney. You want someone who cares about you and who you feel comfortable with. Not every attorney-client relationship will be a good fit. You could ask why they practice this type of law, experience they've had with situations involving alcoholics, experience with cases where there are teens, etc.
And ask anything that comes to mind! Don't worry that your questions are dumb. Your lawyer is there to help you navigate the legal system. He/she needs to know what holes in understanding he/she can fill for you!