I think that the best advice you can get is to read The Book on Managing Rental Properties: A Proven System for Finding, Screening, and Managing Tenants with Fewer Headaches and Maximum Profits by @Brandon Turner and Land lording on Autopilot by @Mike Butler. 

In Mike Butler's Book Land-lording on Autopilot he advocates not disclosing this information.  

Within the MSA, the cheap houses are to be had in four distinct locations: within the urban slums of the actual city, within the urban and suburban slums of the surrounding municipalities of Allegheny County, the limits of Allegheny County, and finally, in the surrounding counties, excluding $$$ pockets with strong school districts and a few purpose-built tax-haven bedroom communities just over the Allegheny County line (Cranberry Township in Butler County, where my brother lives).My target area for those $30K properties is just outside the southeastern limits of the city, which actually used to be very prosperous when the steelmills were running.

@Stan Butler So you are saying that you pretty much only look at the 1% rule from the financial side?

Mike Butler's great book Land Lording on Autopilot discusses the advantages of identifying yourself as the property manager. 

Cheers and thank you for your service @Kenneth Butler !