My husband right now has sole physical custody of his oldest son, because the mom could not handle him and was saying she was afraid of him, so she signed the paperwork at the courthouse for us to take him. But now she is trying to back out because my husband also wants joint legal cusdoy of the youngest child too. He wants legal cusdoy to help with making the decisions. Example, if the kids have to go the the hospital and she is not wanting to do that. Now she is say she wants the oldest back and that she is going to appeal everything to get him back at the courts. Do you have any advice for us so that don't happen, because ever since my step-son has been living with us, he has not gotten into any fights at school and he has even got most of his grades back up.