Where, in the opinion of the Code Enforcement Officer, Town Engineer or the Highway Department Superintendent, a sidewalk or curb is in an unsafe or hazardous condition, either shall inform the Town Council which shall by resolution authorize a notice in writing to be served upon the owners or occupant of said lands, requiring the necessary specified work to said curb or sidewalk to be done; by said owner or occupant within the period not less than 30 days from the date of service of said notice. Whenever any lands are occupied and the owner cannot be found within the town, said notice may be mailed, postage prepaid, to his or her post office address as it is ascertained from the latest tax rolls of the Town of Hammonton. In a case where an owner is a nonresident of the municipality or his or her post office address cannot be ascertained, then a notice may be inserted for four weeks, once a week in the official newspaper of the Town of Hammonton.