Yes.
Yes, see link
Only if it is ordered by the court. You can not decide on your own!
Regardless of the situation, the obligated parent must adhere to the court order of support until the order is amended or rescinded by the court of jurisdiction. The father cannot arbitrarily stop child support payments, he will have to file a lawsuit (petition) in the appropriate state court to have the child support amended or stopped. Unless the young woman falsified the documents needed to obtain public assistance, the state's division of child support enforcement or social services would be aware that her father is paying support also, and that would in all likelihood indicate the support order now in place would hold up if contested.
No, but you have to tell the venue that issued the support order.
Child support is to provide for children not living with you, it would be assumed if you are living with your child that you are supporting them - take it up with your local child support board.
Yes, you have to pay until she is emancipated.
If it is the mother of the child that wants to keep the baby then most mothers would not let anything stand in the way of the child and herself. In this case she can tell the father to leave, but he will be paying child support. If it's the father that wants to keep the child then he has a chance to fight it in court and should seek legal counsel.
no because if you had a baby with another man your ex husband does not pay you with more child support because that is not his child
No, as they do it.
The parent that pays child support does not need to pay child support for her child`s kids, only the current right parent.
no
what state you living in? because i know that when your child turns 18 you shouldn't have to pay child support. that should still stand even if she has a baby. it should be the father of her baby that should be paying child support not you. New York Yes, as well as it can be increased to cover additional medical costs. Depending on the state, it runs from age 18 to age 23. New York is age 21. see links below