If I am a unionized employee and my employment is terminated can I file a wrongful dismissal suite as well as a grievance through the union

If you are non union you cannot file a grievance through the union. That said, if you are terminated you may be entitled to significant severance. I would encourage you to visit the severance pay calculator our firm has developed to see what you would be owed (www.SeverancePayCalculator.com). If terminated, I would also encourage you to give us a call and set up a free and confidential consultation with one of our employment lawyers.