There are a couple of things you can do. You can contact the department of child and family services in your area to report the situation. If you want them to stay with you, you can seek temporary custody at the local family court so that you will have legal custody. You should visit the court and ask to speak with a legal advocate who can review your situation and explain your options and the consequences.
If she abandons the child, yes.
kill the child
The non-custodial parent can file for custody.
I suggest you return to court to get sole custody and an order for support, if there isn't already one in place.
Probably not. But if that parent was ordered to pay child support and is not doing so, then they can be sued for that.
It depends on the exact language in the custody decree, but ordinarily a custodial parent is allowed to place a minor child in the temporary care of any responsible adult.
Maybe.
When the child turns 18 or when they are emancipated by a court order.
no the child is already 18 then they are legally an adult and the parent doesnt need to pay child support
Absolutely!!! If you can prove that in fact the child was abandoned, you have every right to get custody. Get the child and go to court the next day and don't leave until you have the order in your hands.
for or against?
With the permission of the residential parent? Yes. see related question.