+1 Bureau de la Bitcoin - Embassies are for states and a lot of us bitcoin anarchists are frankly offended.

Ideas for usage:
1. Musee de la bitcoin! Any physical objects of historical significance to buy up and display here? First caus coin? First hardware wallet? etc...
2. Daily "bitcoin for noobs" class. Make a room into a presentation that runs several times a day teaching new coiners everything they need to know... Not just a movie though, have workstations and some activities like downloading a wallet to their own phone and so forth...
3. A Bitcoin ATM, of course! Preferably facing the street like a bank would do it.
4. More startup space than just the top floor... I'd say half the 2nd floor too, as long as the 2nd floor is big enough for a solid-sized meetup group.
5. A cybercafe/starbucks that ONLY takes bitcoin.
Bon chance!
Well said. +1 million points for putting in an ATM. That would be awesome. I travel to Montreal on business infrequently and would love to stop by!