§ 3-256. Service on nonresidents
Such citation may be served by such sheriff or constable upon a person not an inhabitant of this State by leaving a true and attested copy of said citation with his or her return thereon endorsed, with, or at the residence of, his or her known agent or attorney, if he or she has one in this State; and if not, with, or at the residence of, the occupant of the land to which such hearing may appertain. If there is no such occupant, then such copy of said citation shall be by said sheriff or constable left at the office of the Chief Administrative Officer of said City for such persons so owning or interested in such land.