On the other hand, moving to Canada might have unanticipated consequences. If you ± partner still had significant ties to the US and were wont to border hop, the significant downside of your first paragraph would quickly become apparent.
Even if you chose to never again to travel to the States, merely stopping there in transit would place you in jeopardy (via DHS's TECS system and Advance Passenger Information System), assuming you ± partner were "person(s) of interest".
