To narrow down this demographic, you will start by choosing the "Geography" of where you're looking (I'd pick the State and County of whatever market).Next, you'll search under the "Property" tab and use the "Equity%" filter.

HOA fees are $250 per unit and pays for insurance, outside buildings maintenance (including roof), Gas and Water.

Electricity is split out by tenant, but domestic water is not.

https://www.redfin.com/school/91009/PA/Ardmore/Lower-Merion-High-School/filter#!

If you're only finding deals that your buyers want, you don't have to "test the waters" first to see if they'd be interested...you can go ahead and get it under contract immediately because you already know you'll have someone to buy it. 

Do any of you happen to have a spreadsheet that will calculate a particular tenants portion of the water bill considering the number of days they have occupied the unit?

@Justin R.Expenses (monthly)123 insurance 230 taxes145 water/trash65 gas55 vacancy275 capex 125 maintenance40 pm software1088 fixed expenses740 debt pmt

Are there separate meter for electric, water and gas?

The exit strategy worst case scenario determines how far under water this building really is in today's market.

I also filter them by means of asking a few questions: 1 - Will they submit all offers, regardless of whether or not they (the agent) thinks it will win?