Section 11-347. Corporation counsel to protect city in all proceedings relating to tax liens

It shall be the duty of the  corporation  counsel  to  protect  the  interest  of  the  city  in  all  matters, actions and
  proceedings  relating  to  tax  liens  and  tax  lien  certificates;  to
  intervene  on  behalf  of  the  city  or to make the city a party to any
  action in which the  corporation  counsel  believes  it  to  be  to  the
  interest  of the city so to do, by reason of any matter arising under or
  relating to any tax lien or tax lien certificate,  or  advertisement  of
  sale  of tax liens. The corporation counsel in his or her discretion may
  represent the purchaser of a tax lien  or  the  holder  of  a  tax  lien
  certificate  in  any action in which the corporation counsel believes it
  to be in the interest of the city so to do,  by  reason  of  any  matter
  arising  under  or  relating to any tax lien or tax lien certificate, or
  advertisement of sale of tax liens.  All costs recovered in  any  action
  or  proceeding conducted or defended by the corporation counsel pursuant
  to this section shall belong to the city and shall be collected, applied
  and disposed of in the same manner as are other costs recovered  by  the
  city.