Such notice shall be deemed to be properly served if a copy thereof is:
(a) Delivered personally;
(b) Sent by certified or first-class mail addressed to the last known address; or
(c) If the notice is returned showing that the letter was not delivered, a copy thereof shall be posted in a conspicuous place in or about the structure affected by such notice.
(Ord. 11090-2019. Passed 5-21-19.)