Section 535. Counsel for social services commissioner

(a) The corporation
  counsel of the city of New York  shall  represent  the  social  services
  commissioner of such city in all proceedings under this article in which
  the commissioner is the petitioner.
    (b) In any county outside the city of New York in which attorneys have
  been appointed pursuant to section sixty-six of the social services law,
  such  attorneys  may  represent the social services commissioner of such
  county in all proceedings under this article in which  the  commissioner
  is the petitioner.
    (c)  Except  as  provided  in  subdivision (b) of this section, in any
  county outside the city of New York, the county attorney, or an attorney
  designated by the county executive, if there be one,  otherwise  by  the
  board  of  supervisors, shall represent the social services commissioner
  of the county in  all  proceedings  under  this  article  in  which  the
  commissioner is the petitioner.