This property was poorly listed.

It is attracting younger retail and a few firms but most shy away from it as they don’t see any added value in it and don’t trust it.

For example, your move-out inspection and security deposit disposition is probably the most immediate need, so start with that.Here's a detailed guide on how to screen applicants: Application Screening Guide

I even have a friend who received an unfounded complaint from a neighbor (the neighbor was just against STRs, no events/parties that occurred), and now their property is temporarily banned/under review, regardless of them abiding by all rules.

I think an alien from outer space could be a wholesler in this country..

Here in Texas, I’ve gone through hundreds of deals this year and maybe half a dozen deals were worth the investment. 

A few quick items:Red flags / tips:- Seller not willing / able to produce a written lease.

Quote from @Alan Cassidy: Hi everyone!

I’m hoping to connect with people and learn from them.

No and you need to put this on hold and research the condo nuke that's about to hit Florida in the form of new legislation that no longer allows condo boards to defer necessary repairs.