So My man filed for recovery rebate back in end of August and managed to get himself arrested last month. IRS sent notice of needing him to verify his identity. I have his state ID his dad has his original SS card and ordered a copy of his birth certificate. He signed and sent back to me IRS form 8821 making me his appointed authorized representative to speak on his behalf. Is that the proper form needed to do this? How do I get this form to IRS?