I have sole legal and physical custody since the divorce 2 years ago. I wish to move out of state. Nothing in my court orders stipulates moving/not being able to move.
However, by statute you must prove to the court that the move is in the best interests of the child. So, just because it doesn't address relocation in your court orders, state statute dictates that you must receive permission from the court.
He has the generic "reasonable, flexible visitation" but has chosen to not ever see my daughter since she was born almost 2 years ago.
Disrupting the noncustodial parent's visitation is one reason that the court may deny your request. If you can prove, or he admits, that he has not exercised his visitation, then it will help you in court.
He is now saying he won't let me move unless I meet his demands (give back wedding rings, terminate his parental rights so he doesn't pay child support).
Generally, no court will allow him to terminate his parental rights unless there is a step-parent willing to adopt.
Not without permission from the court.
Isn't he blackmailing me?
In a manner of speaking, yes. Is it illegal? I don't think so, but again, if he makes this offer in court, it will bolster your chances.
If I move is it kidnapping?
No, but in the worst case scenario, it could result in loss of custody if the father challenges the move in court.
I can only find information when it comes to joint custody. That's why I'm wondering if it is not an issue with sole custody.
I'm not sure what information you found, but you are not allowed to violate the court orders for visitation. The orders must be modified first, sole custody or not.