In order to prove unlawful termination, employees must provide evidence that their employer fired them for an illegal reason. Wrongful termination happens when your employer fires you for an illegal reason.The first step in proving wrongful termination is identifying the legal basis for the claim. It is not illegal to terminate an employee for any "unfair" reason. To schedule a consultation with our experienced New York wrongful termination lawyer, call (646) 490-0221 or fill out our online form today! Employers must notify terminated employees of the right to file for unemployment benefits. Housing Court Forms. If you are bringing or fighting a wrongful termination claim, you should consult a discrimination attorney to determine an appropriate strategy. Fill out the complaint form, answering all of the questions completely. Discrimination-based wrongful termination occurs when an employer fires an employee due to their membership in a protected category under the law.