Va. Code Ann. § 13.1-555

A professional corporation operating pursuant to the terms of this chapter may merge with one or more corporations, limited liability companies, or domestic partnerships only if the surviving corporation, limited liability company, or domestic partnership is a professional corporation, a professional limited liability company, or a domestic partnership all of the partners of which are professional corporations, professional limited liability companies, or individuals duly licensed or otherwise legally authorized to render the same professional services as those for which the surviving professional corporation, professional limited liability company, or domestic partnership was incorporated or organized.