Section 8.21  PROTECTION OF TAX LIEN
   The City shall have the power to purchase any property within the City at any tax or other public sale, or to purchase the property directly from the State or the fee owner, when such purchase is necessary to protect the lien of the City for taxes or special assessments.  The City may hold, lease or sell this property.  Any such procedure exercise by the City in the protection of its lien shall be deemed to be for the public purpose.