While nobody can prevent you from sending some emails, they will have questions about how you're gonna sustain yourself in the US, especially if you stay for lo

While nobody can prevent you from sending some emails, they will have questions about how you're gonna sustain yourself in the US, especially if you stay for longer periods of time and go back repeatedly. As soon as they know you're "making money" from this activity, you'll be rejected. See real cases on Google https://www.google.com/search?hl=en&q=b1%20visa%20remote%20work https://www.google.com/search?hl=en&q=b1%20visa%20remote%20w... Also EU law is separate/different from US immigration law. In summary, if you can help it, I suggest you don't do any work from the US. PS: also if you had to deal with USCIS, you'll find there's a lot of things not written on their site, but that are actually important and enforced. Very different for example from Canada, where nearly everything is available online and helping you succeeed in the process. And yes, US immigration many times "doesn't make sense".