Section 28-212.8. Posting of order of closure

An order of closure shall be
  posted at the building or part  thereof  or  vacant  land  that  is  the
  subject  of  such order, and shall be mailed to the record owner of such
  premises, and any record mortgagee at the address for  such  person  set
  forth  in the recorded instrument, and to the person designated as owner
  or agent of the building or designated to receive real property  tax  or
  water bills for the building at the address for such person contained in
  one  of  the files compiled by the department of finance for the purpose
  of the assessment or collection of real property taxes and water charges
  or in the file compiled by the department of finance from real  property
  transfer forms filed with the city register upon the sale or transfer of
  real  property. A copy shall also be filed with county clerk or register
  of the county in which such premises are located. Such filing  shall  be
  notice  of  the  order  to  any subsequent owner and such owner shall be
  subject to such order.