I have a 4-unit property in Maine that I provide heat & hot water that are currently off of the oil fired boiler. 

If you are a nice landlord you can buy the heat pump units to lower the cost to the tenants and they also last much longer.2.

If you did not advise them of what was needed to prevent pipes from freezing and they were not blatantly negligent like turning the heat off to house then that is on you since the incident is considered natural disaster.

. § 1.263(a)-3(e)(2)(ii)(B):1) Heating ..... and otherI was interpreting that DMSH can be applied to each system because regs does says that improvement rules should applied to each system separately as well, but I also know that the amount paid is considered an improvement to a building if the amount paid results in an improvement to the building structure or to any of the designated building systems.

Once it is agreed to & signed, open escrow, order a title report, have an inspection paying particular attention to plumbing, electrical, sewage (below ground pipes) roof, heating, cooling and get an appraisal.

Around here that could also mean high heat utility bills and snow removal in the winter.

There is unusually no heat in garages which can mean you need a larger furnace.

The property uses an oil furnace for heating. 

You have to accept a much lower ADR and operating expenses are higher (heat) though.

Purchase price: $185,000 Cash invested: $106,000 Sale price: $394,100 complete interior renovation, merged two bedrooms to create master suite and vaulted ceiling, opened main floor so living, dining, kitchen and foyer all connect, in floor radiant heat (important on lower levels in Wisconsin) and custom vanities and tile in baths.