- are you looking to buy a whole hotel? if so, as Misti says, hope you have several million $USD to spend."a place to stay"
Or are you asking about a condo? there are really none on the main beach, but there might be some in NBCC - Negril Beach Club Condos (slightly off the 'main' beach area, more towards downtown), and Point Village, which are individually-owned condo units. (also outside the main beach location, but a very nice quiet property)
the place to find this information is Jamaican real estate websites. There are several out there, just google -