Depending on the temperature, A/C IS considered an emergency here in Florida.

I keep the AC at 76 during the day I believe, and around 72 overnight.2) Some of the newer smart thermostats (e.g. the Nest) have the ability to set a pin that is required to adjust the temperature.

I just bought some of the crushed office REIT stocks.In my mind housing, industrial/distribution/warehouse, and storage are probably going to be alright.

He did most of his own maintenance and he said dealing with the boiler was a pain in the rear - from not only maintenance but constant calls from tenants unhappy with the water temperature. 

I bet there are lots of warehouse owners who are letting rents slide around the Long Beach area right now due to the impacts of COVID-19 and the trade wars.

Here are the various problems: others have mentioned the ability to control the temperature and access the electrical panel 24/7 (those items just make sense).

Temperatures this past winter caused the pipes to burst resulting to water bill around $1,500.

Make sure he/she checks the following:1 - Furnace makes a "coughing noise"2 - Temperature in the house seems to be "feverishly" higher than it should be3 - The furnace fan doesn't seem to be moving/replacing the inside air as well as it should so the house doesn't seem to be "breathing" like it should. 

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.

Air circulation should keep the temperatures close to even.