Also, are they providing the LOI to sign or can you just write your own?

What service/provider might you recommend.

The person has failed to pay rent after a valid notice to quit and notice of increase of said rent, provided the increase in rent is not unconscionable and complies with any and all other laws or municipal ordinances governing rent increases.")

Did you have to jump through so many hoops and provide this level of personal information?

The precise property forecast can vary depending on a lot of factors but the general demand is really what you should use the tool for to make your plans. 

It probably depends on the market or property.

I am also a licensed EMT, and would love to provide housing for travel nurses, contractors, etc. in that realm since I can relate to them in previous jobs that I've had.I'm looking to invest in these states preferably: Georgia (1st choice - preferably near or south of ATL or in/near Savannah), Alabama, South or North Carolina, and Florida.

I have a couple STR investors do this here in the winter months depending on the events coming to town

I realize that direct bookings don’t have the protection or support (should something come up) that these platforms provide. 

new construction gets valued at a way higher premium. this is a false statement. new construction will always beat existing Very market dependent.