There is a LCDH in Montreal, which is going to be a respectable place to purchase, and its less than a 1/2 mile from the hotel. I've not been, so I cannot verify what selection they will have, but Canada has seen a couple of RE cigars as @AlohaStyle has mentioned. I recently was given a Vegas Robaina RE Canada that looks gorgeous and was told that they cost about $50CAD.
Cheers!