i think what @Bob Stevens mentioned is that his zip code average income is equal to his Ohio rentals, while home price 3x differences.

Also you mention he has an awful reputation yet you acknowledged in your initial post you repeatedly buy properties his brokerage represents...not quite adding up.

I can point you in any direction if you have specific questions or need more information on a topic its funny how note investing is Soup De Jour these days on BP.. 10 years ago no one even mentioned it..  

Anthony,You would be surprised by using some old school methods like simply writing a letter like you mentioned. 

Do a series with each focused on the different things you mentioned. 

I'll echo what Zeke mentioned about interviewing multiple realtors / PM's / Contractors to make sure you can get a good idea of what the area is like, in addition to working with someone you're comfortable with. 

So in 3 years if you bought a $150,000 house, you would likely have accumulated $12,000 -$20,000 in equity on your $30,000 initial investment - not to mention your tenant paying down your mortgage, plus some really awesome tax advantages (3.3% depreciation, etc.), plus hopefully some cash flow!  

So- in your approach, I would not mention that at all.

., so I don't truly screen the guests like you mention.

I have given this renter Dave Ramsey's book The Total Money Make-over but I doubt they have read it because they have never mentioned it.