Maryland Code, Corporations and Associations § 5-126

An application of a foreign professional corporation for a certificate of authority to render professional services in the State shall contain the information required under Title 1, Subtitle 5 of this article and, in addition, shall include a statement that all of the stockholders, a majority of the directors, and all of the officers of the corporation, other than the secretary and treasurer, are licensed in one or more states to render a professional service described in the corporation's articles of incorporation.