I imagine a lot of DO schools take Canadians. If you want to maximize your chances, focus on those in the northern region. I have heard MSU is friendly to Canadians, as well as the NY Touro. And WesternCOM. It can be tough as a Canadian, but as long as you don't go driving your snowmobile into your interview and talking about your volunteer experiences in "grade 12", you could have a good shot. Good luck!