Michigan Compiled Laws, Chapter 500. Insurance Code of 1956 § 500.5245

Sec. 5245. (1) A majority of the board of directors constitutes a quorum for the transaction of business, and the acts of a majority of the directors present at a meeting at which a quorum is present are the acts of the board of directors.

(2) On written notice of the time and place and purpose or purposes of any special meeting, any of the directors, in-between regular meetings of the board of directors, may consent in writing to any specific action to be taken by the corporation, and if approved by a majority of the directors at the special meeting, including those consenting in writing, the action is as valid a corporation action as though authorized at a regular meeting of the directors. The minutes of approval and action must be fully recorded, each written consent must be made a part of the minutes, and the minutes and written consent must be reviewed at the next regular meeting of the board of directors.

(3) Unless prohibited by the articles of incorporation or bylaws, action required or permitted to be taken under authorization voted at a meeting of the board or a committee of the board may be taken without a meeting if, before or after the action, all members of the board then in office or of the committee consent to the action in writing or by electronic transmission. The written consents must be filed with the minutes of the proceedings of the board or committee. The consent has the same effect as a vote of the board or committee for all purposes.

(4) The board of directors may permit 1 or more directors to participate in a regular or special meeting of the board, or a committee of the board, or conduct the meeting, by means of electronic communication devices that enable all participants in the meeting to communicate with each other. A director participating in a meeting under this subsection is deemed to be present in person at the meeting.