So, Larry, let me get this straight......
You have worked as a qualified electrician in the Cayman's for 10 years, have you grown up there?
Also, have you sat any sort of an apprenticeship in the Cayman's?, this is the ONE thing after an apprentice finishes their time, that will hinder their progress forward, especially if your boss won't fill out your "completion of apprenticeship" certificate, for whatever reason.
Are you looking to move to the US to work or are you already there?
There are so many un-answered questions in your post.