Welcome to cruisers forum. I had lunch at the Rodney Bay Yacht Club this past February. My wife and I like St Lucia
Not sure of the best way to get a boat from Michigan all the way there in one piece. I would be more worried about it being suited for such a long hard journey since you have not used it much as yet. It's a long trip no matter how you do it unless you take off the mast
and put it in a container and ship it.
To get it home you'll need as noted personal papers and documentation
to prove ownership
. This will be the key problem you need to deal with. You won't require a Visa but will require a passport. You'll also need to deal with importing a boat into St Lucia
(assuming you are a St Lucian) and I can't say what that process would be. The US won't have a problem with you leaving with it however the trip may take you longer than you might expect given the weather
in Michigan and hurricane
season it leaves a narrow slot to go a very long ways. It's about 2000 nm to New York
to St Lucia and almost 1000 more from Michigan to New York
. The alternative is out Chicago down the Illinois River to the Ohio
and Tenn Tom Waterway to the Gulf of Mexico
for the last 1700 nm home. In any event you will need a decent engine
capacity to do a large number of those miles.