Va. Code Ann. § 13.1-549.2

Before any professional corporation may engage in the practice of law in this Commonwealth, it shall first obtain and maintain a registration certificate required for such corporation by Chapter 39 of Title 54.1. Any such professional corporation which has been issued a certificate of incorporation before June 1, 1973, shall be issued a registration certificate upon the payment of the required fee and upon compliance with § 54.1-3902 on or before January 1, 1974.