How do I go about addressing that the thermostat and electrical panel is in the bottom unit and will there be issues with if a breaker trips or if one unit wants it warmer/cooler?

Reno, loved the government regulation and seems like Phoenix 50 years ago but is just a little bit cooler.

Beautiful up there and I'll be going back a lot as it gets cooler. 

We live in Charlotte so my target is Blowing Rock/Boone for convenience to Charlotte, skiing in the winter, cooler temps in the summer, etc.  

(Never seen a frozen pipe in my life.)2)  Is there a significant drop in the tenant pool during the cooler seasons?  

The furnace is in a hallway closet upstairs and my property manager said usually the vents closest to the furnace will get the most air.I just acquired another house also built in the early 80's and same thing, upstairs gets all the heat while downstairs is a bit cooler.  

After that, the rain was enough mixed with the cooler weather.

https://entp.hud.gov/idapp/html/condo1.cfm

consider proximity to an airport wit reasonable fares,  Manty and Trivers (local speak) are a Hike to Milwaukee Airport, and Green Bay is quite expensive to fly out of. just a thought, Unless you fall into a great deal, a $50-70K 4plex is gona be pretty rough,  both in condition and location, get familiar with the areas, and if you do settle in Manty, Just remember its Cooler Near the Lake, not sunglasses and board shorts cooler, like 50 degrees in late June, and 20 miles west its 80 degrees. just considerations.  

It's been gutted and rehabbed but doesn't have air conditioning (or a swamp cooler).