The categories are configurable.

I also configure thermostats, timers for lights, heating and fountains.

It looked like it needed a bit of configuration before getting started.

IMO, the house configuration and amenities are highly variable & to me immaterial.The ABSOLUTE criterion is cash flow - - hey, it's an investment & I want something for my time, effort and initial cash-in as an annual ROI. 

Hidden below each is a substantial amount of programming code to automate functions that you would not normally find in a spreadsheet, functions like report generation, configuration options, database functions, etc.Feel free to contact me offline if you need more info.Best,Frank

You mentioned that the seal on the refrigerator was not sealing properly because of the new door configuration, can the seal be removed and turned so that it would be in the same configuration as it was on the other side?

How big are the apartments, what configuration( how many buildings, stories, etc), when were they built, how well insulated?

Start with configuration similarities; 2bed/1bth, 3/2 or whatever.grade your property against similar configs and add,subtract for amenities;poolstoragegarageA/Claundryif the deficits out number  the  benefits, then place your rents BELOW the common fmr for the same configuration.

I am beginning to wonder if I am doing a mistake by not considering other configurations (3/1, 2/1) or older builds.

I've been hobbling along with a Google Voice configuration since I posted this thread last year but that could certainly be improved.