This is not legal advise, and I don't play a lawyer on TV but I would say as a contractor all work worldwide is open. Your not moving to the US your just taking business from their. There maybe a question of where you pay tax at some point so set up a Hong Kong Corporation that is near impossible to sue if your going to be dealing with goods internationally. And why restrict yourself to the USA only, hoped this helped call if you want to discuss it further, thanks...Ken Queen