I work in Ontario. I requested to have my monthly job performance reviews done in writing instead of verbal. My boss says its company policy to do it verbally and if i refuse, it will be considered as insubordination.

If you need the performance review conducted in writing due to a disability that needs accommodation, your employer would likely need to accommodate such. If it is just a personal preference, your employer is not obligated to provide a performance review in writing. If you would like to discuss the specifics of your circumstances, please contact our Firm for a consultation.