After purchasing, I removed all the radiators, boilers, and the large oil tank, then installed 2 central heating/cooling system's with air duct's throughout the entire home. 

Then, that winter, the steam heat system froze, and we got a call from a neighbor about a giant icicle hanging off the back of the house.

Landlord shall maintain, and/or repair/replace the plumbing, heating, cooling, electrical systems, and the exterior walls and roof of the Property.

I'd say yes if you were two zone for heating or if you are doing major rehab.  

I have heard of thermostats that you can install that have a minimum temperature setting (say, 50 or 55 degrees F) to automatically turn on the heat even if the tenant doesn't have the heater on, and we'd like to put those in to prevent frozen pipes. 

We are currently in the rehab stage of the property, and we are doing everything ourselves for the renovation excluding the heating and air.

Brand is the heat pump?

The two got into a heated argument, and the police were eventually called.

. :) and or had to send in the 5k retainer and watch it erode kind of like a snow cone melting in texas summer heat.

landscaping the front +$making it have curbside appeal+$needs new air and heat and venting$8000All plumbing fixtures will not be easy to retrofit, better to rip it all down.How does the shower pan and tub floor look?