Delinquent fees as a lien. After the owner is given notice of the
amount of the fees due, except for those owners that have properly
perfected an appeal as set forth herein and the owner fails to pay
the amount due, said amount shall constitute a debt due and owing
to the City, and the City may lien said property and/or commence a
civil action to collect such unpaid debt in accordance with the provisions
of 53 P.S. § 7101 et seq., Municipal Claims and Tax Liens.