I live in Rhode Island and my Ex owes me 18,000.00 in back child support for his two children. He has recently been approved to start receiving SSDI and is expecting a lump sum payment in the very near future. The court has told him that he cannot cash the check and there is a "restraining order"? I know they will take some of it for back support but how much? I've been reading for hours online and find amounts ranging from 15%-100%. Can anyone help?