Be brief, direct and to the point. If you are open to returning to your position in the future, include that as well. 5.Let them know you're done with being on the board. A Board Resignation Letter is a formal document that a member of a board of directors writes to announce their decision to resign from their position. Commission indicating the resignation of the director and the successor in office, if any. Before you enter a conversation with a board member about resignation, it's essential to have a plan to fill their seat. Eligible County government employees participate in the Virginia Retirement System, which is managed through the Department of Financial Services. The bylaws may provide the exact method of filling vacancies.