Is dual citizenship even a thing anymore? I thought they stopped doing that but I could be wrong. Here is a list of programs you may be able to take advantage of to come to Canada. ircc.canada.ca/explore-programs/index.asp Not sure if it’ll help, but it’s worth a try.

There is also bill C-3, which allows people who’ve had ancestors here claim citizenship. immigration.ca/claiming-canadian-citizenship-by-d…

Good luck! I hope you find something that works for your bro.