The area's you've identified are begin to heat up. 

Hey Henry think that using GIS maps to identify people who pay taxes late is great idea.

Identify high quality opportunities (homes with good foundations and structure that will last 30+ more years)4.

@Yashar Fred most of the items a housing authority identifies as deficient should be remediated anyway.  

Create a simple spreadsheet or written list to compare the features of each and identify the ones that align with your requirements.

We found the Finsbury Drive deal through our partner, Glenn Klingensmith, who identified the opportunity and brought it directly to us.

We found the Tip Top Road deal through our partner, Seth Choate, who identified the opportunity and brought it directly to us.

I advise working together to identify and agree on potential issues.

I'm doing some research now to identify potential areas to keep an eye on and possibly connect with an investor-oriented local agent in each of the areas we're considering.  

Your realtor can help identify these properties.3.Temporary Alternatives:While waiting for a new build, you might consider investing in a property that can generate rental income immediately.