I'm going to answer your question instead of doing a wrap-up.
My brother went to university in the United States. He happened to have been born there, as my father was there at school at the time. He ended up staying there and starting a video game company in 1990 in California. He always dreamed about starting a company in Canada. Despite the fact that when I did the due diligence it wasn't such a wise idea for him to open it in Atlantic Canada, he did invest in Prince Edward Island and then in Newfoundland. He has since sold much of his interest in California and he focuses on his Canadian companies. He's done the opposite.
I also want to mention there are no provincial tax credits in Newfoundland or Prince Edward Island. You can tell your wife that.