Necro from the past

Tristar offers solid bjj, I can attest to that. Gracie Barra (http://www.graciebarramontreal.ca/) offers excellent bjj.
Gamma gym I have never been to but have heard that it is solid as well.

Order of preference: 1) Tristar for mixing varied fighting element, tactics
2) Gracie Barra
3) Gamma

A Zombie necroed this thread.

How apropos

Excised from: Moving to Montreal - BJJ? - No BS MMA and Martial Arts

Attention limbozombie, pay attention to the dates of posts. That thread was over four years old.