Purchasing a Suppressor???????????

[birdiepar]

I live in NC and am interested in buying a suppressor. I have read about several different ways of buying a suppressor. Does anybody know for sure about buying as an invidual vs a trust buying, or even a third way if there is one? Or is either one even possible? Best and quickest way of purchase. What happens to suppressor when owner passes away?
I am a licensed gunsmith what has to happen for me to legally manufacture a suppressor(that is after I find out building specs)??