If you haven't paid for it already, I suggest you have it surveyed (plenty of surveyors on this site). If there's is a big problem you can walk away from the purchase.
You might be able to ask someon on this site from Rhode Island to take a look at her too, but a surveyor could save you the price of airfare, and many headaches down the road.
Great minds discuss ideas;
Average minds discuss events;
Small minds discuss people.
The best minds discuss sailing (and a little bit of politics). I don't know why. It's a mystery!