I am a bit concerned about water long term in AZ and NV. 

I guess a lot of Scott's buyers are under water the day they sign a loan, so he must be regularly evicting and reselling some of those houses.

Maytag and Whirlpool are good imo.I personally also avoid ice makers and water dispensers.

This is a beautiful house - rehabbed/looking new and fresh - walking distance to the water etc, yet low gross yield  compared to Byrd (???)

So, if your property has all bills paid by the tenant, you will deduct from the voucher amount the set amount by bedroom count for items like water, electric, gas, etc.

I originally found BP to help myself nagivate the waters of RE.

That actually is a benefit, as no one is expected to water the yard.  

Then based on @Michael Baum's suggestion, I think I will have my cleaner and/or maintenance person do monthly/quarterly maintenance like using using enzyme based cleaners, grease fighting drain treatments and hot water flushing. 

The other thing could be tracking what you have had come up on the last 5-10 projects after closing, i.e. the water heater was at the end of life when we bought the last 6 out of the last 10 properties.

(And I would tell you to not buy a property that doesn't cash flow unless you have significant resources behind you that could absorb anything that could come at you - like replacing a $5,000 AC one month followed by replacing a $1,000 hot water heater the next).