Ohio Rev. Code Ann. § 3772.27
(C) A licensed casino operator may open a casino facility in phases and may have gaming areas in one or more buildings, facilities, rooms, or areas that together constitute a single casino facility within the boundaries of one or more of the properties described in Section 6(C)(9) of Article XV, Ohio Constitution, and, if located on more than one of those properties, is connected by one or more of the following: