Section 5-389. Filing of the commissioners' report

Such report signed by
  such commissioners or a majority of them, shall be filed not  more  than
  one  year after the date of the filing of the oaths of the commissioners
  in the office of a clerk of a county in which real estate sought  to  be
  acquired  may  be  situated  and in case a part of the real estate is in
  another county a duplicate report or certified copy shall  be  filed  in
  the  office  of  the clerk of such other county, provided, however, that
  the supreme court upon application and good reasons shown  therefor  may
  extend  the  time for the taking of testimony or for the preparation and
  filing of such report, or  both,  beyond  one  year  for  a  period  not
  exceeding  eight months. The commissioners of appraisal shall notify the
  corporation counsel immediately upon the filing of a report.