I worked at FORANS roofing and was fired last week for an argument with an employee that happen off the job , I was there for 11 months , never a written up or anything , can they just fire me with no proper cause

Generally speaking, termination for cause and without any compensation is reserved for the most egregious forms of misconduct. I need more specifics about your job and the events that led to your termination in order to assess your case. I encourage you to call me at 416-216-5906 to arrange a consultation. Lumi Pungea