A director should submit a written resignation letter that notes the effective date of their departure. For a director resignation to take effect the board must accept the resignation with a motion, seconder and vote.How do I terminate (dissolve, surrender or cancel) my business entity? Your resignation must be in writing and addressed to the board of directors. Looking to resign from your job? Learn how to write a professional and respectful two weeks' notice email with our helpful templates and tips. The main thing you should try to do is be clear about when and what you are doing. Complete and include this form with your paper submission. Make it clear that your letter is meant to communicate your exit from the board of directors. They should be written in a respectful and professional tone, and be submitted directly to the employee's supervisor or manager.