The winter and summer temperatures wouldn't work letting a rabbit roam in the garage.

Rising temperatures, increased frequency of wildfires, and more severe weather events have heightened awareness about environmental safety.

At a glance, a pool would serve more guests, especially in hot temperatures like the markets you mentioned. 

Example: https://www.amazon.com/Temperature-Humidity-Indicator-Applic...

We have the rare guest that breaks into the pool equipment room and tampers with the pool heater to raise the temperature.

Also, it didn't get up to a hot enough temperature even though it was brand-new.I love steam saunas, but it's easier to just use the one at the fitness center.

Thats more like a temperature check on how optimistic everyone feels right now.Any long term prognosis can only rely on supply and demand projections.

I have no idea what the outside temperatures are (ie it is really hot out or cooler) and is she doing things to help keep the house cool? 

You could charge a flat fee on utilities with a clause that states if bills exceed $X, then you split based on square footage.I've done all of the above and it has worked out.Regarding the thermostat, you may want to put in a mini split for the JADU in case your tenants like one way but you like the temperature another.

80 is an extremely high temperature to keep a home at.