I don't think my lender cared where the boat was at the time (nor did they know, to my knowledge). They cared that I had breach of warranty coverage and that they were listed as a mortgage on the US coast guard documentation
The lender was BB&T, although it was arranged through a mortgage broker. I can highly recommend Bob Dunford of Trident Funding
in Sheldon, CT. My insurance is through Pantenaeius. My insurance broker found them after getting multiple quotes. The only real hiccup was that the lender insisted that the insurance be in place before they would wire the money, so I had to pay to insure the boat for a few days before I bought it.
The terms were 30% down (they would've written for smaller down payment), 84 months (they would've done longer, not shorter), 3.99%.
The insurance does have list of exclusions, including a large area of the northwest Indian Ocean
, Red Sea, Arabian Gulf area. And, as is common, I need to be north of 30deg50 between July and October if I'm in the North Atlantic.