City of Petersburg issued the following announcement on Oct 27.
Notice: The City of Petersburg Assessing Department will be visiting properties in our area between now and January 2022. Michigan law requires cities to maintain accurate and updated property record cards. Inspection is defined as physical measuring and listing of all the property elements including exterior photos. If you are not home during our visit, an information card will be left on the door notifying you that the exterior inspection was completed. If you are on the inspection list, you will be notified by mail in the form a postcard prior to the visit. NOTE: ASSESSING DEPARTMENT PERSONNEL ALWAYS CARRY PHOTO IDENTIFICATION AND THE VEHICLE IS IDENTIFIED WITH A CITY OFFICIAL DOOR MAGNET. Please contact the Petersburg Assessing Department for any questions or concerns: 734-279-1210. Thank you in advance for your cooperation during this process.
City of Petersburg Assessing Department
Original source can be found here.