When we submitted the app, I still lived in California and had to prove I would move back to Canada with my husband. Right before approval, I moved back to Canada although after 3.5 weeks I came back to California to wait with my husband. If they weren't satisfied with my evidence they could ask me to submit more proving that I was going to move back to Canada. But I emailed them with scanned documents proving I had already moved back to Canada which I think sped up the process. They didn't have to worry about whether I was moving back or not. A Buffalo applicant was just contacted for more evidence that she was going to move back to Canada which could delay the case. I nipped it in the bud.
The medical can be extended now so I would not worry about that.