We did TD because there is also a branch in our town center. It worked out well for our son. You will open a U.S. account and a Canadian account.
My son will be a U1 this year (Faculty of Arts). We are from the Boston area. First (if you aren’t already) you should join the McGill International Parent Community on Facebook. Lots of us connect there to work through McGill logistics. Also, feel free to PM me if you have any questions.