Great statement Don - there’s a wealth of wisdom condensed into a single sentence!

For example, if the AC condenser and plumbing somehow fail at the same time 5 months in (extreme example, I know), that $130 a month won't mean anything as you'd need 5k-10k to remedy this problem.

If I don’t get any replies, I’ll try condensing it.If I need to, I’ll pay for help on this matter.

Took him ONE minute to flip the breaker in the basement for the AC unit (the blower was still running on a separate breaker, but the condenser was not).So, the first time I had a tenant tell me that their dryer stopped working and that they need a new one, my immediate response was “did you check the breaker?”

water heaters:  flush them every two years, replace anode every 4 years.dishwasher : clear food trapa\c pour clorine through condensate drain etc

When you say no AC do you mean it doesn't have a condenser presently or the home was not built with central heat & air. 

Invest on a moisture sensor for the A/C system which automatically turns off the A/C when water accumulates on the bottom of the condenser.

Christian that is an excellent breakdown and I learned a ton from that as im sure you did as well reflecting your thoughts and experiences from that rehab and condensing it to a top 10 list. 

And is there any water piping or something that produces condensation running below that section of wood flooring?

I'm glad I did it and feel it helped condense my learning time on those basics.