i'm not sure i understand what you mean by ex-parte. if there is a court-ordered custody agreement in place, then to change it, you have to file a petition with the court asking for the order to be changed (modified). if there is only a private agreement in place, then you can tell your ex that you no longer agree to be bound by it. that will probably result in anger and chaos, so be prepared to go to court and respond to your ex's custody petition, and maybe the police at your door, or you should file you own custody petition asking for a custody hearing to determine everyone's custody schedule. you should talk to an experienced family law lawyer before you do anything that will have a negative impact on your rights and obligations.
Answered on Jul 31st, 2017 at 8:01 AM