Legal Question in Family Law in Maryland

Generally the custody/visitation order obligates the custodial parent to petition the court for approval of any intent to move. If that is so in your husband's case, he can file a petition for contempt which will order the mother to divulge the address. If that requirement was not included in the court order, he could ask for modification of the custody order to include that requirement and to divulge the current address. Of course if as a result of this he is being denied visitation, that should also be part of a court proceeding.