A judge can lay down visitation rights right up to your eighteenth birthday, but since you are still a minor, not talking to him doesn't violate the court order.

Depends on the DM, but I can't imagine him just being kicked out. After all, most D&D groups are made up of friends, so the DM would have to be a total dick to do that. Some things I've seen while playing:
>He could be given a new character and get written into the story for the next session.
>He could be allowed to observe further sessions and be allowed to see the DM's notes.

In a campaign I played, a player died but was allowed to observe further games.
A few sessions later, the party found a magical timepiece that could send us forward or backward in time. I suggested going back to the point where he died and saving him. The DM had never thought of that, and made a deal with the player. So long as he kept quiet about what he knew, he could rejoin the party.

but you could use money to buy games, and use the left over to buy more dick to suck. There's no down side!