I work with a local builder that is building these exact Townhomes in Indian Rocks Beach FL.  He has two sites that were going to be identical luxury townhomes for Airbnb but he has decided to sell one of the lots.  This comes with all the plans, blueprints, site maps, etc.  He can even take care of the construction if you the investor wants.  Click link for info.  Indian Rocks Townhome Airbnb