The cost of abatement of said nuisance shall be considered a lien upon the subdivision lot affected, superior to all other liens and encumbrances, except tax liens; provided that within sixty (60) days after such cost and expense has been incurred, the County or person performing the service by authority of the County in his or its own name files notice of lien in the County Recorder of Deed's Office in the County in which such subdivision lot is located. The notice shall consist of a sworn statement setting out:
(1) A description of the subdivision lot sufficient for identification thereof,
(2) The amount of money representing the cost and expense incurred or payable for the service, and
(3) The date or dates when said cost and expense was incurred by the County.
However, the lien shall not be valid as to any purchaser whose rights in and to such subdivision lot have arisen subsequent to the weed-cutting and prior to the filing of such notice, and the lien of the County shall not be valid as to any mortgagee, judgement creditor or other lien or whose rights in and to such subdivision lot arise prior to the filing of such notice.