An attorney or insurance company can use a third -party such as a copy/record retrieval service to obtain medical records. What must be listed on the authorization or be submitted with the request that will allow the third-party to act on behalf of the attorney or insurance company? Click all that apply. Letter of representation signed by the patient, legal guardian or personal representative The third-party copy service is listed on the request letter The third-party copy service is listed on the authorization Letter of representation signed by the insurance company or attorney