We’re purely using this money for flips.

I install them, but when folks move out I find that the smoke alarms are missing, batteries dead, etc. 

Those in support of tech, namely chip manufacture and battery tech., and energy.

My husband actually comes from pure IT background (CIO at the job he is leaving) so the learning curve will be a breeze!  

A lot of them contrary to popular belief on BP are pretty experienced folks and looking for that next edge.But a lot of them are pure beginners and the success rate for them is astronomically low...

Which is pretty much contrarian to the MMM lifestyle of purely passive investing. 

Account Closed, sorry I didn't hear that, the batteries went dead dead in my hearing aids. 

But if it is a pure investment, by the time you add insurance and property taxes, I think it will not cash flow.I would also check to see if you have enough for initial repairs. 

In most cases it's the landlords, but there are items where the landlord and tenant may discuss and designate who wants to do it such as smoke alarm batteries, light bulbs, pest control, refrigerator water dispenser filters etc etc etc...Usually, if the landlord provided the appliance, the landlord is responsible for it's maintenance. 

From a pure cash flow perspective phoenix is probably the better bet.