@Logan Splinter Thiele heating and cooling has treated me good.

Building Coverage – this mitigates and restores the building from covered losses and this coverage is required by lenders to secure loans.Building Coverage – i.e. fire, wind, water, vehicle impacts and other elements of structural damage.Loss of Rents/ Business Income Coverage – pays for loss of rental income when a building that is rented to others is damaged by a covered loss.

Things like original plumbing, electric and heating systems are what makes them dreaded. 

If you have hydronic heat, that may be nearly impossible to split out economically.

Romeo Manzanilla, 2020 ABoR president, commented, “We recognize there’s still an element of discomfort with listing one’s home during the pandemic and Austin REALTORS® are taking every precaution to ensure safe and efficient practices across the market.

as a plumber and heating contractor, I wouldnt even offer to just change just the evaporator on a unit that's 12 years old.

The other element is: you would be buying a business.  

I have started to run numbers on properties daily, and have seen oil heat instead of gas in a variety of units.

As its owner, there were elements of this house that always irritated me.

The electric baseboard heat can run 300-400+ a month and insulation is crap.All units have separate utilities except for the previous statement about the sewage.Taxes are ~$5400First floor ceiling is only 7ft at entrance.Built in 1966 and built solid, however, very dated.