53 Pa. Stat. § 22636
The city controller of each city of the second class shall designate and appoint one person, learned in the law, to act as solicitor for the department of city controller. Such solicitor shall be an attorney at law, admitted and qualified to practice in the courts of this Commonwealth. Such solicitor shall be the legal adviser of the city controller in matters pertaining to or affecting his department, and he shall, when requested by the city controller, act as his counsel in any litigation involving any matter or thing pertaining to or affecting the department of city controller. The authorization, in writing, of the city controller in all cases shall be a sufficient warrant of attorney for appearing for and representing him in any such litigation. The solicitor shall hold office at the pleasure of the city controller, and shall be paid a salary not less than three thousand six hundred dollars ($3,600) per annum, as the city by ordinance shall provide, and there shall be appropriated a sufficient sum of money for that purpose.
53 P.S. § 22636