Amending Title 4 of The Philadelphia Code, entitled "The Philadelphia Building Construction And Occupancy Code," by amending subcode "A," entitled "The Philadelphia Administrative Code," by amending Chapter 5, entitled "Violations," and by amending subcode "PM," entitled "The Philadelphia Property Maintenance Code," by amending Chapter 1, entitled "Administration," and Chapter 2, entitled "Definitions," to require owners of certain properties to designate agents for service, managing agents, and property managers, all under certain terms and conditions. — Open Common Ground