Fina now works in the Philadelphia District Attorney's Office.
Spanier faces charges of perjury and obstruction of justice, as well as other charges, all stemming from his alleged knowledge of and subsequent coverup of the Jerry Sandusky child sex abuse scandal. In the suit, Spanier says those charges were brought against him "in bad faith."
Spanier in the filing asked federal prosecutors to permanently block the state's prosecution of him, PennLive reported.
At issue is whether Cynthia Baldwin, Penn State's general counsel in 2012, was representing only the university, or Spanier as well. Spanier believed Baldwin was representing him, the suit says, but she was only representing the university, PennLive said.