This form may be used to draft your Resignation of Resident Agent. A document required or permitted to be filed under the act cannot.The Board expects a Director to tender his or her resignation if he or she fails to receive the required number of votes for re-election. To resign as a registered agent in Michigan, submit a Resignation of Resident Agent form to the Michigan Department of Licensing and Regulatory Affairs (LARA). You can think of following: 1. Send a letter to your previous company regretting your inability to serve the notice period.