No lawsuit is required. Sint Maarten now fully recognizes the Dutch-American Friendship Treaty. There was a story in the Daily Herald back in 2015 when the treaty was now being fully applied in Sint Maarten. Americans can now remain in Sint Maarten for up to 6 months and if they want to stay longer or work, you have to apply for "Admission by Law". Just go down to the Immigration and Border Protection Services office on A.Th. Illidge Road, fill out a Model 4 application with a NAF 200 fee. You just have to show you have no criminal history and you have sufficient means to take care of yourself.