N.C. Gen. Stat. § 55B-13

A licensing board may suspend or revoke a certificate of registration issued by it to a domestic or foreign professional corporation for any of the following reasons:

(1) Upon the failure of such corporation to promptly remove or discharge an officer, director, shareholder or employee who becomes disqualified by reason of the revocation or suspension of his license to practice; or

(2) Upon a finding by the licensing board that the professional corporation has failed to comply with the provisions of this Chapter or the regulations of the licensing board.

Upon the suspension or revocation of a certificate of registration issued to a professional corporation, such corporation shall cease forthwith to render professional services, and the Secretary of State shall be notified to the end that the corporation may be removed from active status and remain as such until reinstatement.