I agree with @Ali Boone that turnkeys can be a great option for new(er) investors, particularly those with limited time and expertise to tackle more hands-on approaches.  

In reality it was quite a number of other people doing it together and the person making the post only owns a small percentage and they’re really making the post in order to gain limited partners. 

And they just increased their rental limits to try and keep pace with cash tenants, so if Section 8 is part of your strategy, now is a great time.

All that said, and to answer your question, I think a guaranteed check for 66% of the rent offers some peace of mind and limits potential loss. 

4) If yes to #3, then may I have the link for such a information from a Limited Partner (investor) perspective?

SF has a limit of 90 days per years for AirBNB in the city otherwise I would keep it and short term it all year long.

It also could limit your exit strategy if the market softensseeing a lot of fix and flippers in kc as an example getting crushed due to this

They actually have pretty limited reach as of now and focus primarily on major metro areas.

Does it need enough work that it will not pass a conventional mortgage appraisal, thereby limiting yourself to cash buyers?

The fact that they don't have critical thinking skills and limited income/saving, makes them desperate and easy target.