The next step wpuld be to start a mediation through the FDR mediation process. From the Fairway Resolution site it says
Family Dispute Resolution is a mediation service, which is part of the wider Family Justice system delivered by the Ministry of Justice.
The Family Justice system is designed to help people resolve their care of children issues without the time, expense and stress of going to court. This in turn frees up the courts to focus on cases that most need judicial expertise, especially those involving domestic violence.
Family Dispute Resolution (FDR) is a critical part of the government’s family justice system, and is designed to help families reach agreement on parenting arrangements after separation.
Whilst most people reach agreement on parenting arrangements privately, some people need extra help.
The first step is to complete the Parenting Through Separation (PTS) course which is a free information programme run by experienced professionals. You can find a list of providers by visiting the Ministry of Justice website.
If you can’t agree arrangements following the PTS course, your next step is to use the Family Dispute Resolution Service.
FDR is a nationwide meditation service that helps people discuss their parenting arrangements. An FDR Provider (mediator) will work with all parties so that a practical agreement can be reached that supports the best interests of the child.
Anyone involved in a dispute about the care of children can go to FDR. Most of the time, this is parents who cannot reach agreement but it may involve extended family, whanau or other people.
Sorting out your own arrangements is better for you and your children. You have more control over the outcome than you would by going to court.