Violation orders
and other orders or notices referred to in this chapter, in the case
of violations noted on a particular property, shall be served on the
owner or some one of the owner's executors, legal representatives,
agents, lessees, any tenant or other person having a vested or contingent
interest in the premises, either personally or by certified mail,
addressed to the last known address, as shown by the last preceding
completed record of the Receiver of Taxes or in the office of the
County Clerk.