Can an employer terminate me without advance notice or without giving a reason or an unfair reason for the termination? Before filing a lawsuit in court for wrongful termination, you need to file a complaint with the Illinois Department of Human Rights and the EEOC.If you believe you've been unlawfully dismissed, consult a lawyer immediately to assess the potential for a wrongful termination lawsuit. Vaziri Law, LLC represents clients in wrongful termination claims in Chicago and all around Illinois. This article covers some of the common legal grounds you might have for suing your employer in Illinois for wrongful termination. Wrongful termination occurs when an organization violates the exceptions to the atwill employment laws of Illinois. You can as long as you haven't signed a severance agreement and passed the revocation period (seven days post signature in most agreements). Unfair or wrongful termination occurs when a person loses his or her job for an unfair or invalid reason. If the EEOC rules against you, you could have the option to file a lawsuit in the relevant circuit court. Wrongful termination occurs when an employer fires an employee for reasons that violate federal, state, or local employment laws.