First things first: you need to consult a family law attorney in the count where the child is now located. He or she may suggest you seek a writ of habeas corpus, or may have some more conventional techniques. You could also appeal the judge's apparently erroneous decision. Another possibility is to seek an Order to Show Cause for Contempt in the court which first issued the order approving the adoption (and perhaps making other orders). While a local family court does not exactly have a lot of power to enforce its contempt orders in another state, registering the judgment in the county where the child is located might very well permit you to seek an order in that county requiring the stepfather to return the child to you.
Answered on Jun 26th, 2015 at 12:02 PM