805 ILCS 10/16
The provisions of this Act shall not be construed as limiting the rendering of professional services or the practice of any profession under any other provision of law. However, the provisions of this Act shall be applicable to attorneys at law only to the extent and under such terms and conditions as the Supreme Court of Illinois shall determine to be necessary and appropriate. Articles of incorporation of professional corporations organized to practice law shall contain such provisions as may be appropriate to comply with applicable rules of such court.
Nothing contained in this Act shall be construed to prohibit a corporation from prosecuting as plaintiff or defending as defendant any small claims proceeding in any court of this State through any officer, director, manager, department manager or supervisor of the corporation as authorized by Section 2-416 of the Code of Civil Procedure.
805 ILCS 10/16