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Isn't this how all investor visas are supposed to work? A certain amount of investment every year.
I would imagine that statement rings true for recipients of “investor visas” from and in many countries >

It worked really well in Canada when it was used properly. Investors had to drop money into a business and run it for five years, with the intent of creating new businesses and employment.  in about 25 years the diner near me has passed through the hands of four Korean families and they keep 2-4 wait staff employed.