Hello Leon,
Thank you for your reply again.
I do want to move back to Canada with my wife. The reason I asked those questions is because my wife is still in school, and the date of graduation is unsure. If I can take advantage of satisfying the residency obligation outside Canada, why not?

The processing time is usually shorter and any financial statements, academic records, federal and state police records, etc are easier to obtain. Also, should the processing time delays, she won't have to worry about having to exit and re-enter Canada every 6 months with a visitor visa.
Thank you again for replying.