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. I just looked up our bylaws. Before filing with the state, you must provide written notice of your resignation to the company that you had been representing. How to fill out the Director Resignation Letter Template for Companies? Usually, it's no more complicated than submitting a letter of resignation to the board of directors.