The City Commission shall have the power under the provisions of state law to levy, assess and collect an annual tax upon real and personal property within the City to the maximum provided by the Constitution and general laws of the State of Texas. In addition, the City shall have the power to levy a tax on the following: (i) occupation taxes as such occupations are capable of being taxed consistent with the general laws of the State of Texas; (ii) franchise taxes against any public corporation using and occupying the public streets or grounds of the City separately from the tangible property of such corporation; and (iii) occupancy taxes on hotel or motel rooms (to be comprehensively defined by city ordinance) such tax not to exceed the maximum percentage allowed by state law of the consideration paid by the occupant or occupants of each such room. In collecting its taxes, the City Commission shall have the power to join with any other taxing entity to do so including the Cameron County Appraisal District, the school district, or any other entity allowed by law.