I was the 6th visitor...

That kind of clientele demands top notch infrastructure.The island would have to have a private jet airport, a marina, golf course, beaches etc...It quickly gets to become a major project and very few islands are suitable for this kind of project.I guess there could be a market for lots in a low key development, but getting there will always be key.

Current back building is not suitable for living and we are currently suggesting that anyone entering or inspecting it proceed with caution as no work has been done to make this building ready for entry.

As a military member what types of secondary jobs are suitable to learn the ins and outs of real estate without actually buying property?

I was wondering if that’s a good way to Lilit having visitors all the time and what # of days you would set them at?

Supply constraints are generally due to 1) lack of available land suitable for development and 2) regulation of development including typical building codes, zoning laws, HOAs etc. but up to the point of height restrictions, historical districts, banned materials, requiring solar, and even outright bans on development.If you look at where high rents often beget the desire for rent control, it's usually coastal cities (the ocean is a huge land constraint).

Not to mention that visitors, contractors, emergency response people would not have access to my property unless I opened it for them.

If it were mine I (MIGHT) spray it white, and put shutters on it and add windows in place of the boarded up openings.As well as add a see through commercial style door on both ends of the hallway (rape and other attack prevention) if the area called for it.Cement a few park style BBQ's into the ground on each side (split them up to prevent tenants arguing) and park style trash cans chained to the ground (with lawn personnel responsible for changing out the bags).A repave and paint of the lot (might be a lender requirement).A commercial awning with WELCOME on it (in a bad neighborhood not everyplace seems welcome).The building name and address (easy for Police and visitors to read from the road).Some leasing signs and good look at the roof regarding replacement (for leaks) because the building looks neglected.Good bright lighting (up high on the building) around the building and parking lot at night, and no bushes (hiding places for attackers).I said (MIGHT) above, because I'd need to take a drive around the area and see the competition, to decide what I wanted to offer to make the building competitive without overspending.Also, I'd do that drive and crunch the numbers on it before being locked into a purchase contract for it, because it might be a pass instead of a buy. 

Find a SFH with a suite or suitable that needs an update and away you go. 

@Ann Park Kissimmee is adjacent to Walt Disney World which is of course a huge draw for visitors and the largest employer.