Any arrears are still owed, but he can't anyway.
see links below
Yes, otherwise the tax payers would have to and that's not right. Parental rights and child support are 2 separated issues.
An unmarried father cannot "choose" to not pay child support. The laws in every state require that a father pay for the support of his child. The mother must bring an action to the appropriate court so that a child support order can be established. Visitation rights are separate and a father can have visitation rights established by the court. Visitation rights are not dependent on paying child support.
no
what is going to happen when i give up my right as a father? will i still have to pay child support?
yes, unless cleared by the courts.
Terminating parental rights does not mean you are no longer obligated to support the child so you still have to pay child support. Unless the child is adopted. You will have no rights to the child at all if you have your rights terminated and the court will not give them back so be sure what you are doing.
Yes. He also owes ongoing (current) support, until/unless the child is adopted.
Yes, the Supreme Court ruled back child support is a protection of equal rights, so see an attorney or call your local court.
Termination of parental rights does not terminate child support until/unless the child is adopted. At that time, the biological parent still owes whatever he had been ordered to pay and has not paid.
If he is not the father of the child, he has no rights to sign over.
No, adoption is irreversible.
Every state has different laws about this type of situation. In most states if the father does not pay any child support at all and has had no communication with the child for over 6 months, it is considered child abandonment and their rights can be taken away from them.