I have a ranch in California and I do my hunting up there. It is too hard to get a legal weapon down here. I just noticed that after many years of no silencers available, all of a sudden everybody wants to get a "supressor."No but they're often called silencers even though they don't make things silent outside of hollywood; yes, with the right paperwork; sometime back in like 1934?
edited to add: I see your location is Mexico, so my answers to #2 and #3 do not really apply- I have no idea about laws down there.