I understand he's been paid so far. Just take that pay away if he's convicted. Is that legally not a possibility?
It's not even a possibility if Greg wouldn't agree to it to begin with. He's not going to bank $5 million on the hopes that the jury overturns his conviction. He'll be lucky to make that much all of next season with a new contract. People aren't going to touch these guys. Ray Rice is an example. Former elite RB who had a down year and is now untouchable. His agent is probably tell him to sit down and shut up and keep cashing his checks and Greg isn't going to argue. He's getting PAID to do nothing at all.
The question people are ignoring is does Greg Hardy even WANT to play football again this season if it means he has a chance of losing some of his money for it. He has no reason to help the Panthers. One could argue the Panthers haven't done much to help him. Plus, he's on a one-year deal and he's unrestricted after this. I doubt highly he's holding too much Panther loyalty right now.