The main floor unit controls the thermostat for the whole house(another potential issue)Just want to get your thoughts on the best way to tackle this.Look forward to your responses.Thank you.

They say they run the thermostat at 72°-74° degrees during the day and try to remember to turn it down to 68° at night or when gone. 

They have their own thermostats so can control they by room/floors.

No doubt all of us that have been doing this awhile have received the "A/C is in-op" on an inspection report and it turns out that the inspector didn't know how to work the thermostat

In addition, we are taking advantage of a program offered by the local energy company to install Smart Thermostats in the building at no costs.

Cap rate is only a numerical thermostat to quantify what buyers in the market for a specific type of property are willing to pay. 

This is the best thermostat control for a tenant.

I built out some warm storage units in the basement and installed Lutron caseta systems with Ring doorbells and Nest thermostats.

Run pay back analysis on each improvement you get most for the bang for the buck.Also have timers on the thermostat during off hours.

She came to me and said there was something wrong with the electric ,it was more than what the previous tenant was paying .I asked her if she used the oven , did laundry , blow dry her long hair , and kept the thermostat set to 70 degrees .