On the other hand, it may also be a great idea to look into unused properties - empty big-box retail, warehouses, and even odd-sized and shaped lots "no one" wants and consider developing your own self storage facility. 

However HF or HD, they also have overheads and all that, how many hands in how many warehouses it will go through until it gets to you.

This post is riddled with ignorance....First, and previously mentioned, trades work with warehouses that provide them just about everything they need for any job.They aren't going online for every job to find the cheapest deal on Amazon, eBay, etc.

I had a septic system on a multi family rental in New York State.. it freezes during extreme temperatures and sometimes backs up.

We also have a very low cost of living (probably because the weather sucks and nobody wants to live here) but if you can tolerate 45 degree shifts in temperature in a 24 hour period you'll love it here!

Columbus has experienced significant growth in recent years, partly due to the influx of tech giants like Intel ($20 billion), Meta, Amazon, and Google establishing warehouses and data centers in the area.

A warehouse was slated to open in Florida, but so far nothing.

I'm curious to know what's the right thing to do in this situation...I've explained to the Bottom tenant he has the luxury of controlling the temperature of the house.

Maybe certain types of properties would work - warehouse, office, self-storage (hiring an operator). 

Quote from @Dustin Sanders: @Quinn Olivarez I have the 3 markets I'm in listed below:- Pensacola, FL- St Petersburg, FL (technically Gulfport, FL)- Helen, GA I would think Helen GA will pick up when the temperature warms up.