I assume for visa waiver countries those 12 weeks can be done in a 3-month visa-free visit, with the purpose of "seeking investment" or so. Otherwise you'd have

I assume for visa waiver countries those 12 weeks can be done in a 3-month visa-free visit, with the purpose of "seeking investment" or so. Otherwise you'd have missed the cycle after going through the "annoying and long" process of getting a visa.