Thank you for the quick advice! Yes, they are spiteful recovering addicts but very much still showing 'addict behavior' when it comes to settling things. Both lie all the time, saying they have filed and both claimed the child (when they are not entitled to) just to get back at each other and use the child as a pawn. I understand that if they owe taxes there will not be refund to capture, but historically, they were getting EIC and nice refunds so I think it is worth it to request.