Do I have to live there permanently or just for some part of the year? How are the days counted?
Answers
The recent change in the US legislation requires that citizens domicile in Grenada for a minimum of three years. However, the term “domicile" has not been fully interpreted or explained and no parameters have been given. You would best be served consulting with a US immigration lawyer who may be able to better qualify the recent changes in the US law with you.
You may apply for the E-2 visa on day 0 of citizenship being granted. There is no requirement to stay in Grenada currently, but saying this, the 3-year domicile rule is slowly being implemented.