If the unwholesome environmental condition is not corrected as a result of the preliminary notice, no preliminary notice is given or the condition exists on a vacant lot or unoccupied improved real estate, the responsible party shall be given by certified mail, return receipt requested, directed to the owner at his or her last and usual place of residence as determined either by resort to the most recent edition of the respective County Directory or the records of the Brown Township or Greensboro Township Assessor’s office, as the case may be. The notice shall state the nature of the unwholesome environmental condition, describe the real estate upon which the condition exists, demand the abatement of the condition and set a date upon which the condition exists, demand the abatement of the condition and set a date not sooner than two calendar weeks after the date of such notice, when the property will be reinspected to ascertain if abatement has been effected. If the certified mail is not returned within 30 calendar days or if the address of the owner is unknown and cannot be ascertained upon due diligence, it shall be sufficient to give notice to any offending owner by publication, once in a newspaper of general circulation in Hancock County, or Henry County, as the case may be. The owner(s) shall have ten calendar days from the date of such published notice to abate the offending condition.
(`95 Code, § 61.09)