The French i know is very basic. Moreover learning French while pursuing MBA seems to be a daunting task. I would love to invest in learning French and working in montreal, but shifting my focus to French right now would not be a great idea i think.Montreal is such a great City, French and English are commonly speaking, Indy as well, Spanish, Italian, and so on,,,
If you know french you will be fine in Montreal, if you know both you will feel such a fish in the sea