Section 28-207.4.2. Enforcement of vacate order

All orders issued pursuant to
  this  section  28-207.4  shall  be  posted  upon  the  premises and made
  available to the public. Immediately upon the posting of an  order  upon
  the  premises,  officers  and  employees  of  the police department, the
  department, and other authorized officers  and  employees  of  the  city
  shall immediately act upon and enforce such order. The police department
  shall  provide  all  reasonable  assistance  to the department and other
  authorized officers and employees necessary to carry out the  provisions
  of this section 28-207.4. A copy of the vacate order shall be filed with
  the  county  clerk  of the county in which the premises is located. Such
  filing shall be notice of the vacate order to any subsequent  owner  and
  such owner shall be subject to such order.