I would have thought the common area, but if the rate of consumption was 121/day then there aren't enough units attributed to the common area to be that one.  

A little sugar goes a long way, especially on the forums. 

Without any sugar coating, can somebody who owns a handfull of multi family units (preferably at least 20 units) tell me the reality of my plan and if I am being WAY too naive with my plan?

My thought is to try and come up with some kind of formula based on sqft, bedroom, bathroom, and # of tenants to get an average percentage of consumption per unit, then bill back based on that math.

It's simply matter of consumption.

I'm not looking for anything sugar coated, and welcome all the feedback that you can provide.

What happens when foreign governments and entities stop subsidizing our over consumption via treasury purchases and all those dollars return home? 

Looking for property management recommendations in Sugar Land , Pearland TX area.

Looking for property management recommendations in Sugar Land , Pearland TX area

The caveat of investing out of state, as you pointed out, is the time consumption/prepration of developing your core four (RE agent, lender, contractor, pm, etc.)