This certificate is made in accordance with Michigan Court Rule. Requests for medical records of deceased patients require a letter of authority in addition to your signed request.Please complete this form in its entirety so we can help you receive the information you are requesting. 1. This authorization is voluntary. Read the entire Michigan Statutory Will carefully before you begin filling in the blanks. Fill in the appropriate information in each applicable section. Learn more about MySparrow and sign up to take charge of your healthcare today. If you would like a copy of the coordinating workbook, or if you need assistance completing this document, please contact MidMichigan. Send letter of authority michigan via email, link, or fax. You can also download it, export it or print it out.