Legal Question in Family Law in Illinois

Well, he can clearly move out, since you state he did it. He is responsible for child support and possibly maintenance, but you have to go to court for that. The sooner you ask the court for money from him, the sooner you will receive it.

He can live anywhere he wants. There is no proceeding pending. The only time a person is legally limited in his/her ability to leave a state is a custodial parent after a divorce case is filed. However since he has already left the state he has a hard argument that you should not also be able to leave.