Mo. Rev. Stat. § 356.151: Disqualifying event, effect.

Upon the occurrence of any event that causes any shareholder of a professional corporation to become a disqualified person, the shareholder shall not be entitled to hold any office or be a director in the corporation, render any professional service of any kind for the corporation or its customers or clients, or receive dividends on or be entitled to vote such shares, except with respect to acceptance of the provisions of chapter 351 or granting consent to purchase by a qualified person.