They have foam insulation on the back, so the walls are room temperature to touch, and not cold like tile.

They should have equipment that can get down and deep in the carpet, but I'm not sure if the temperature gets hot at the carpet pad or not. 

Connecticut housing judges usually frown on this kind of behavior from tenants.Be careful, if your tenant's heat has gone out AND the temperature in the unit has dropped below a certain temperature (usually 65℉) the property could theoretically be declared uninhabitable.

Would you rather be home based in the Bay Area with tons of things to do nearby, good weather, lots of nature, etc. or someplace with little culture, extreme temperatures, bland immediate environment, etc., etc.

In a great and perfect world your A/C would be zoned so you can set the temperatures for each floor, the norm however is that the thermostat is downstairs so the A/C turns off before it cools the upstairs.

For example, you should learn how to change a light bulb (yes, even in your fridge) and learn how to reach inside your fridge and adjust the temperature so it does not freeze your food.

Even as a precaution, the thermostats for the heat are programmed not to exceed certain temperatures, so that is controlled to an extent as well.  

Air circulation should keep the temperatures close to even. 

Highest temperature in the next 10 days is 85°.Any advice appreciated!!

When the temperature and humidity  rise, it becomes crucial to keep our pets comfortable and safe.