Canada doesn't have any joint JD/MD programs, although it's definitely something I've considered. However, I'm greatly deterred by the fact that I'll be stuck in school until my mid-30s.
It's not that bad, especially if you're not a K-JD and have done other difficult things in your life... make sure you have kids before law school and bring them with you... secret to success!
I'm not sure how that works, but you can contact LSAC about that by calling or emailing to ask and find out. http://www.lsac.org/jd/lsat/accommodated-testing
I'm adding a few bots that'll add some interactive games and tell you a bit about the server/7Sage when you join, so don't be alarmed if you join and a bot says hello to you! They don't usually talk back. :)