Were you fired from your job because you complained about illegal behavior or asserted your legal rights?
If so, you may have a wrongful termination claim for retaliation or whistleblowing. Many employment laws prohibit employers from firing employees for exercising their rights under those laws.
Employees are also protected for whistleblowing: reporting that the company has broken laws unrelated to workers’ rights (such as laws regulating consumer protection, product safety, government contracts, or shareholder fraud).