Delaware Code Title 8. Corporations § 609. Engaging in other business prohibited

No professional corporation shall engage in any business other than the rendering of the professional services set forth in its certificate of incorporation;  provided, however, nothing in this chapter or in any other provisions of existing law applicable to professional corporations shall be interpreted to prohibit such professional corporation from investing its funds in real estate, mortgages, stocks, bonds, or any other type of investments, or from owning real or personal property necessary for, or appropriate or desirable in, the fulfillment or rendering of its professional services.