Hi my question is,I have a 17 old and we just moved to a different state cause he biological father is harassing us and I'm getting engaged. He pays child suppor but doesn't see her cause we don't have a parenting plan and also he is a level lll sex offender, so I have custody of her. He is now trying to make us move back to the state can he do that?

If you have full legal custody and he doesn't have any visitation rights, I don't see any grounds for him to get you to move back.