Termination is considered unlawful when it violates federal or state laws designed to protect employees. In Michigan, most employment relationships are “at-will,” meaning an employer can terminate an employee for any reason or no reason at all, as long as the reason is not illegal. Unlawful terminations include those that breach employment contracts or violate anti-discrimination and labor laws. For example, firing an employee in retaliation for filing a complaint about illegal activities at work is considered unlawful.