In many cases, the other spouse may cooperate if they receive money or other consideration for the agreement. An example of this is moving the child out of state. If the ex-spouse refuses to give permission to take the child, consider offering other considerations. I suggest that the child support payments be lowered to compensate for the added cost of traveling out of state to visit. In addition, the visitation schedule should be changed to give the other parent longer visits. Perhaps giving the other parent Christmas vacation every year would obtain their cooperation. In addition, the parties could agree on regular “Skype” visits over the internet. Offers of this nature may result in cooperation to move out of state and improve the relationship between the two parents.
After you and your ex-spouse have agreed, you can file a simplified form to have the court approve your agreement.