This is going to be a bit tricky and you will likely benefit from counseling with an experienced attorney. You would start by taking the custody Order which you have (or get one from the court in your County if you don't) and then you you would need to take that to the Court in Canada to prove that you have custody. There may be some international law issues that can be tricky but generally the Canadian Court will honor the US Court's Order.
Answered on Mar 13th, 2015 at 8:32 AM