I'm a UK citizen that has been looking at EB-1A all week (because of Brexit), I'm now sure I do not want to continue living here if we in fact do withdraw from the EU. My questions: - How many of the 10 criteria must you actually satisfy? Is it a binary decision, i.e. proving 3/10 is the same as is the same as satisfying all 10. Is a positive decision 100% guaranteed is at least 3 criteria are proved satisfactorily?…
I am not an immigration lawyer or a tax advisor, that being said, I am familiar with the process. You become permanent resident when the CBP officer stamps the MRIV on arrival. From that point on you have the same tax obligations as any other US person. That being said, you should probably consult an actual US immigration lawyer.
I've dealt with tax issues between GB and US. Long story short - it's hairy...get some professional advice.