Yes you can.
I'm not familiar with this waiver, but I'm sure that signing it does not exempt one from paying support.
Yes, if the statute of limitations for such action has not expired.
Yes. The passport can be revoked or limited, if you owe a certain amount of unpaid child support.
Only the courts can approve any waiver or forgiveness of past-due child support.
It depends of the circumstances they may or may not
In many jurisdictions, the husband is presumed to be the child's father unless paternity is established by other means. The biological father would likely be required to pay child support even if the mother is married to someone else.
You can waiver it in court but as soon as you need a benefit from the state they will go after him first.
Have child support services in your state handle the situation. They will revoke his license and try to seize assets.
The courts must approve any waiver or settlement of back child support. This is because, strictly speaking, the money is for the child, not you.
Yes, when the primary parent goes on Welfare. Authority to collect is transferred to them.
Generally not. You need to review your final decree documents with your lawyer to determine if this is true in your partiicular case.
Yes she can. Neither one of you can dictate to the other who the child is allowed to see or not.