Without knowing the condition of the property, that is the main thing.

Lastly Jim I am surprised it took you this long :)  AS you know one of the main rules on BP is operators / sponsor etc are suppose to divulge that they are in business and not pretend they are something else and they do it by Omission .  

I didn't think it was going to be that good, I made the  main house a LTR and the back house a STR.

I have finally got them in my hands ( straight from the state of Maines website) and now realize I have no idea really what I am looking at!

I think this would make sense in the long run for the rental property as it will extend the life of everything it touches like the Sink, faucets, showers, water heater, dishwasher, and Clothes washer while also providing clean drinking water in addition to the reverse osmosis drinking water system I already have installed.The main problem with this hardness level is that we get a major deposit buildup on all of these items, which will eventually clog up the faucets for tenants and lead to rusty shower enclosures that take forever to clean.In addition to this, it looks like we could likely have the salt added every couple of months by the property managers in addition to that it would allow for a quick inspection from them, and then also we would instead bill the cost of the service onto the ledger for the tenants.For reference, it does not look like the landlords in the area have water softeners.Thank you everyone for your input ahead of time.

My main thing is in how little people have explained this concept to me.

Hello, I have a two-unit SFH (first floor unit & second floor unit which share a main entrance but have separate private entrances once inside the house), located in California (I know...).

Appraisals use GLA or Gross Living Area, that is your main house.

The main one being the location. 

There is a burned out shell of a building located on a main street near our home.