Any and all fees, charges, services, and other costs incurred by the City to restrain, correct or abate a violation of this chapter, or to prevent illegal occupancy of a building, structure or premises, or to stop an illegal act, conduct, business or utilization of the building, structure or premises in violation of this chapter, including but not limited to attorneys' fees, surveying costs, and engineering costs (the "violation costs"), shall be the responsibility of and payable by the owner of the property on which the violation occurred to the City of Havre de Grace (the "City") upon receipt of a written, itemized invoice from the City for such costs. The invoice shall be sent by hand delivery or by regular mail, certified mail, or by posting on the property. A late charge equal to 1.5% per month shall be added to any amount unpaid and outstanding 30 days after billing until the outstanding amount is paid in full. Unless paid on time, the violation costs and interest shall be placed on the said property owner's City property tax bill. The said property owner shall pay all collection costs, including the City's actual attorneys' fees, should the City engage the services of any attorney to collect any such unpaid charges. All violation costs, interest, and collection costs thereon shall be chargeable against the property on which the violation occurred and shall be collected and secured in the same manner as general ad valorem taxes and shall be subject to the same penalties and the same procedure, sale and lien priority in case of delinquency as is provided for general ad valorem taxes. An administrative fee of $75 shall be added to the lien for processing of the lien procedure.