Having Canadian immigration stamp does not affect GC processing. Hope this helps. To the best of my knowldege you do not need to inform US authorities about this.
You don't need to inform US authorities about Canadian PR. You need SIN # which can be applied the day you land. The formalities for PR card are completed on the airport itself.
You can land in the morning and leave Canada by evening. If you are planning to land via aircraft then it is better...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.