If any such owner or such owner’s agent, which shall include but not be limited to a lessee, tenant, property manager, or trustee, after receiving notice from the city, fails, within 20 days after such notice, to clean such sidewalk, or fails and neglects to keep such sidewalk clean and free from weeds and noxious growths, then and thereupon, the city may proceed to clean such sidewalk, as may be reasonably required, and the cost thereof shall be charged to and against such property owner and shall be collected from such property owner or the property owner’s agent, if not immediately paid, by action in the district court.
(Sec. 20-4.2, R.O. 1978 (1983 Ed.)) (1990 Code, Ch. 14, Art. 20, § 14-20.2)