If you are flying in to Montreal, there is a convenient shuttle service that will bring you from the YUL Montreal-Trudeau airport to downtown Montreal. Please click here for information on pricing (certain metro passes allow access to the shuttle if you're already planning on purchasing one) and routes. You can also take a taxi or uber if you prefer.
Montreal offers a wide variety of Hotels, Bed and Breakfasts, and Airbnb's for your stay. This list is merely a few options in the downtown area close to restaurants, attractions, and the venue. Feel free to research options and stay anywhere you are comfortable.