We'd be glad to share some tools that might help if you are looking in the Central Ohio area..feel free to PM me.Just for perspective, Franklinton has 2 distinct neighborhoods...East of 315 is commercialized and exploding with development, but this has been in the works for 12-years.

Your description of tax returns and using 75% is mashing two distinct things together. 

Done.Loma Prieta in '89 is my earliest distinct childhood memory that I can pin to a specific date and a specific exact location for where I was at when it happened.

The decline of economies is obviously a distinctively different type of event, where the investor has some responsibility in understanding economic trends pertaining to their market of choice.  

Each note has its own history and distinct just like every piece of real estate does whether you are a buy and hold or fix and flipper.

I don't think the distinction between dates like that are too important. 

Are the color-coded areas zip-coded or just distinct neighborhood names?

The distinction to make is appears to.

Unit 2 5yrs. pays 800 with one person living there and smells like candles were used to cover marijuana scent.

This was primarily because of the think, "sweet" smell combing from a scented-oil warming that was going in the living room when we arrived.