Michigan Proof of Service (Flint) is a legal document used in the state of Michigan to verify that a document has been served upon a party. It is a sworn statement by a process server that attests to the fact that the document was served upon the intended recipient in accordance with the laws of the state of Michigan. There are two forms of Michigan Proof of Service (Flint): personal service, which involves the physical delivery of the document to the recipient by the process server, and substituted service, which involves delivering the document to a third party who is expected to deliver it to the recipient. In both cases, the process server must provide a written declaration as to the method of service used and the date, time, and location of service.