It is easy to search for records by going to search land patents, enter state, and last name of person you are searching for. I chose to check one of my brickwall ancestors, Daniel Fenn. I found three land patents under his name. I found land patents given to Daniel Fenn from the Detroit land office for land in Washtenaw County, Michigan Territory.
Document numbers were 9093, 9094, 9095 and were for 80 acres each, for a total of 240 acres of land. They were issued 14 October 1835, two years before Michigan became a state.