You could grow a portfolio but will it be sustainable?

You make revenue here and there but the goal is to generate enough in the winter to sustain all the expenses for the entire year. 

From what I read in The Economist, these Sun Belt regions often see steady population growth which can drive healthy rent appreciation.

Certain amenities can drive bookings (e.g. having a hot tub) but don't necessarily improve guest satisfaction.  

But again, dedicated crews drive reno costs down.If you can connect with a flipper in your area (quick out your local REIG) and ask to come along when they scope out a job, you will get more from one or two trips than from a dozen books. 

You drive and I’ll buy.  

I always put a couple nail holes and anchor bolts in their car fender before they drive away.

“Lyons, I love seeing someone with your drive and vision diving into multifamily real estate in LA—you’re in one of the most competitive and opportunity-rich markets out there.

You could drive by their place to see what the area is like and what's going on.

There is a ton of areas so I would start with where you are located at, within a 30 min drive