Hello there 5pkoach,
Thanks for contributing to the Apple Support Communities.
Congratulations on your new iPad Air!
You should be able to access Newsstand publications in the Canadian iTunes Store. Try this step to browse and buy magazines:
To find and buy Newsstand magazines and newspapers, open Newsstand and tap Store. When you buy a Newsstand publication, it's added to your library and billed to your iTunes store account.
You can return to your Newsstand library from a magazine or newspaper by pressing the Home button. To arrange Newsstand magazines and newspapers, tap and hold the publications to arrange them in your library.
If you need help with a specific publication, go to the app's built-in Help or App Store listing.
From:
Use Newsstand on your iOS device - Apple Support
Sincerely,
Jeremy