I went to a great wedding about 11 years ago in Negril. The couple decided a few days after they arrived that they wanted to get married right there, at SamSara in Negril. They worked with someone at the hotel to get the paperwork in order and get an officiant...just the two of them and our group at Sunset. We brought them to LTU afterwards for a "reception". Spur of the moment, very romantic...they just didn't know how they were going to break it to their families, lol.
Looks like you planned a nice wedding there RJSon. These days there are tons of vendors and planners in Negril. If I were to do it again I'd do what I did the first time - plan the whole thing myself. That's the way you are assured to have the wedding you WANT.
Mazel Tov!