My husband adopted son & ex-dad willing to give up all rights. He waived his right to appear in court. Judge did not want the arrearage dropped. So he signed off on court order but crossed out the part to waive the arrearage because he said the child can come back and sue the court and all involved for the support. It is rightfully the childs and the ex still owes alot... Now the Attorney General is taking it out of his employment check until paid. The EX wants me to write a letter saying that he has already paid the arrearage to me personally and if I don't he said he will take me to court for his rights back. He has only visited my son a total of 6 times his whole life and my husband and I raised him. He is now 6. The EX calls our home all the time and threatens us. What should I do?