Leah Rothman's lawsuit against McGraw, his production company and CBS claims she was forced quit the show in April 2015 due to a hostile work environment. She had worked on the show since 2003.
In court documents obtained by PEOPLE, Rothman alleges that on March 11, 2015, she was called into work on her day off, where she and approximately 300 Dr. Phil employees were gathered into a room staffed with several security guards. McGraw allegedly entered the room, told the guards to lock the doors and ordered the employees to turn over their phones.
McGraw then allegedly said one of his employees had leaked information to the media and that he had turned over the case to federal authorities.
"If you f--- with me, I'll f--- with you," he allegedly said, according to the lawsuit.
On March 18, 2015, Rothman says she met with a human resources executive at CBS to complain about the meeting. The human resources exec allegedly said he sympathized with Rothman, but a followup meeting she attempted to set up never materialized, with Rothman claiming she was ignored by the exec.