yes - as of right now he has no legal right to tell your mom to do anything. HE must file asking for a paternity test. IF he is determined to be the father then he will be ordered to pay child support. IF he wants to visit your sister he must file with the court and get an order of visitation and if he wants to stop your mom from moving he would also have to get the courts to order her not to move more than a certain distance. It sounds to me like he is just trying to scare your mom.

