sorry i didnt see this earlier.
They provide information about the national exam but they do not help prepare for it. However since mcgill exam are harder than the national (past students) you should be fine revising your notes and doing practice questions. There is also the possibility of working in quebec for 1200hr than transferring over to another province (depends on the provide) the requirements are different for each province.
students dont usually move the longest may be an hour and 15 min bus ride but if it is really to far you can request a change or car pool with other students (the metro is really convenient).
others can be in your hometown but you are not allowed to contact a PT that you know (since it is not your cachement area) you may put in a request for the place though.