Thanks, @higomex! This is the most recent thing I've come across: https://www.washingtonpost.com/news/worldviews/wp/2017/06/21/mexico-just-legalized-medical-marijuana/?utm_term=.ab943eed5355

I don't yet fully know the answers to your questions, but when I do, I'll surely post about it. Thanks for your curiosity. Love and cheers, returned :-)