Nestor -
Do a google on Marine Surveyors Boston
also, go to
www.maineharbors.com, go to Mass / Nauticle Links
I see a couple people with the right qualifications, Rob Scanlon, also the outfit in Scituate, which is just down the south shore from Boston/ Cambridge.
just a note, the B-25 has a 9.5 beam, which means a bit of a trailering hassle, to haul it back to Florida.
Bill