One way to immigrate is by starting or buying an US based business, but this seems to be more complicated than it sounds.

You need to fit a visa category, in this case most appropriate one being E-2 and are likely expected to invest a significant amount of money, albeit there is no required minimum. It's possible to get it with amounts lower than $100 000, but the safest bets are above $150 000, but this also depends on a case by case basis.