Given this is where my major operating expenses fell (beyond taxes and insurance), keeping this cost lower, by average, helps my cash flow.I invest in older neighborhoods, so the 2-4 unit properties, typically have single water meter, maybe single electric, and many have radiator heat with a single boiler.  

I assume it has sewer/septic, water and electric and they 2 tiny homes are plumbed/wired?

A 2 bedroom in town verse a 2 bedroom that overlooks water are completely different things. 

Water heater 3 years old.

You might need a 2nd well if you're not on city water. 

If you are curious on the market I would guess you have the ability to test the waters 

I got a very good price on the building (about $25k per door), but it was a ton of work as in addition to tenant issues, there was TONS of physical distress (foundation repairs, sewer line and water line repairs, electrical upgrades, new roof, and apartment renovations needed for all units). 

An alternative to batteries is a "water battery". 

We do not have serious floods, tornados, heavy snow and rain, frequent major hailstorms, big earthquakes, or extreme weather conditions.

@Don Owens My 9-5 job revolves around Indiana water regulation and well installation.