Ohio is an "atwill" employment state. Under both Ohio and federal law, it is unlawful for an employer to retaliate against an employee who has engaged in protected activity.An employee may file a lawsuit in an appropriate court. The lawsuit must be filed within 180 days of the retaliatory action. Learn about the options for filing a charge of discrimination with the Ohio Civil Rights Commission. Retaliation for filing a complaint can take many forms, but courts make it an employee's responsibility to prove that an employer has acted illegally. Our Ohio employer retaliation attorneys fight for you. There are three main categories of wrongful termination: discrimination, retaliation for a protected activity, and violations of public policy. Specific Laws with Express Provisions Prohibiting Retaliation are Required in Ohio Wrongful Discharge Claims in Violation of Public Policy. This article covers some of the common legal grounds you might have for suing your Ohio employer for wrongful termination.