So,,,, If somebody goes and gets it, and drags it to salvage, is it theirs?
guess so
Yes, along with all the costs for doing so. How much would it cost to tow a ship across half of the Atlantic ocean, at latitudes of Newfoundland and Ireland, in March? Where would you deliver it to? Will you be allowed to bring this ship into a port if the ship had no inspections or service in two years and is a biohazard? How much will it cost you to do the cleanup? How much do you expect to earn on selling its metal? The nearest steel mills are in China, on the other side of the planet.
The owner of the ship (someone in Dominican Republic) is in no hurry to mount a rescue. He probably will be better off collecting insurance. The ship was probably sold for peanuts, as it had no value or purpose to its original owner.