I have done some research on MBA courses. From what i know i would suggest you this:
Check out the admission requirements carefully. Lot of universities require GMAT but will waive it off if you have good academics + work experience. You will have to justify the waiver through a document. It will be something like an SOP. For now i can say University of New Brunswick from New Brunswick province has this criterion. I am not sure about ontario universities but do your research and write emails to university admission committee.
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some universities may not ask for gmat but all of them ask about gpa