There isn't really a lot of people looking to rent a 3500sqft house and that may translate in longer vacancies.

The area has certain advantages like shelter from regulation risk (pretty much as low as anywhere in the country if you buy in the approved STR tourist zones) and long term security (people aren't going to stop going to Orlando anytime soon). 

Quote from @Brendan Doherty': I’ve read in books of people getting past having to live in the property they own so they can rent all units year one of ownership(living on the property with an rv).

There are lots of helpful people in this forum and LOTS of posts to scour.

I got caught and lost my money and more and more people are also reporting similar circumstances. 

Maybe also consider if they are "good people" that work in the community and just want a safe place to raise their family. 

I think people were/are just trying to avoid agreeable gray.

But for many people, it is one of a number of sources of deal flow, to add to MLS listings, wholesalers, direct owner outreach, auction, etc.Assuming you are specifically talking about sheriff auctions, just make sure you familiarize yourself with the general procedures for the auction.  

Visit with people there and you'll get a more detailed look at things from people actively working in the areas.

In the end, people rely on internet for all sorts of things and you want that to be reliable.