Hi,
1. With a valid study permit + passport + TRV, you can enter/re-enter Canada from any Port of Entry (even if only few days left in it's expiry).
2. Must apply for the renewal/extension of study permit before the expiry of the current one. Better to apply 30 days in advance.
Thank you for your reply Enfield.
-My main concern is that the visa was awarded for my previous institution, not for the one I am planning on attending.
-Also the time of 1 month remaining on the student visa when I re-enter Canada also has created some doubts in my mind about whether or not I will be allowed back in.
I have heard some people say that the old TRV should be valid for entry, while some say that I need a new TRV.
I have yet to receive an authoritative answer to this one.
Thank you again for your reply.
Also, thank you for replying Acca!