Child Support cannot be attached to pay a judgment.
You file an enforcement action with child support enforcement
YES, BUT YOU CAN FILE A PETITION FOR MODIFICATION OF YOUR CHILD SUPPORT
Yes. You must file for visitation/custody in the same court that issued the child support order.
You can try, but the mother's new spouse isn't responsible for your child.
You should file a motion for modification in the court that issued the child support order immediately.
Yes. If the the first cousin is one of the parents of the child and has a job but refuses to pay for food and clothing, and you are caring for the child, you qualify to file for child support. You may not be able to marry the first cousin as that is illegal in some but not all jurisdictions, but you can file for child support.
the guardian should file to have the order transferred to them as well as file on the parent currently receiving it to also pay. Or the obligor parent should file for custody.
You can't. If you are not the child's legal guardian you can't do anything.
The question that would arise first is why it would be stopping if child support is still owed?
No because you dont pay tax on child support
The state does not pay child support. However if you require public assistance the state will automatically go after child support, and even if you do not require public assistance you can file for help with the Office of Child Support and often their services are free. The father may not pay voluntarily but a court action will require him to.