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Your daughter needs to get a family law attorney (either the one who handled her divorce or if she does not have any money she needs to go to the local legal aid society) and have them file a counter motion exposing the lies in his complaint. SHe may get to speak at the hearing but most judges want everything in writing and if she doesn't do that she limits her options in court. Also you city opr county might have a child support collction office that has counsel that can help her.
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