File a claim for identity theft with your local police dept. Send copy of report to the creditors. Notify 3 main credit reporting agencies (Trans Union, Experian and Equifax) about identity theft and ask them to remove the delinquent accounts from your daughter's credit file. She will have to do this, not you.
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Please review my legal guide on Avvo on what steps to take to root out the identity theft against your daughter so that it will not haunt her credit reports and she will not suffer harassing calls. I have provided that in the link, below. Please let me know with a thumbs up or down if the guide is helpful, which it should be, if you put the steps into action. At some point, she may need an attorney, if the collectors do not back off, after your daughter implements the steps in my legal guide.