Saint Pete proper (city limits) is a 30 day minimum but as you indicated IRB, Seminole and some others jurisdictions like Largo etc are legal.  20% CoC is tough, but not impossible. 

As far as why I was considering an LLC - it seems like there's two camps, those who think it's a necessity for legal protection, especially as you grow in unit count, and those who think it's mainly a waste of time and money.

Not legal or accounting advice but when someone says that it would Make me nervous about type of work they do as if they cut corners that way what other ways they cutting corners

After $200,000 in legal fees I finally got the US Gov't to pay me a fair price, but it was devastating.

He knows the areas that you can legally air bnb, what specifically the property is going to need to maximize bookings/ROI, and has the property management contacts to optimize the ROI. 

My thought would be that your situation is probably less of a legal issue than a people issue.

Prices stopped climbing, unemployment grew, and individuals sud denly realized that they were no longer holding on to investments but rather playing in the world’s largest game of legalized gambling—and they had just lost.

As for Force Majeure, first this is not legal advice because I am NOT an attorney.

What legal steps need to be taken, and what to do if a tenant does not want to switch?

The HUD is a legal document...but OK, you can claim it's bunk if you wish as I know it makes you feel comfortable.