Look at migration patterns, towns where big companies are moving to, cities with colleges and hospital campuses, cities along major freeways that are close to other big cities and major destinations, etc etc. 

You could try talking with other local investors or property management companies to ask about what they are seeing and try and spot a pattern from all those data points. 

A main part of the Tool is a valuation grid patterned after the FNMA Form 1004.

I actually really liked the woodgrain pattern, but it did not go well with everything else being painted white:As you can see, the door wouldn't shut... so I made a state-of-the-art tool to transfer the frame geometry to the door slab:BEHOLD!!!

Most markets are seasonal on pricing, so it is just a matter of understanding the pricing pattern.

Its growth results in a positive net migration pattern in these areas, where more people are coming in than out.Job growth is a leading factor in the growth of a city.

The point is, even if you can identify a pattern that will lead to a crash, predicting the exact timing is impossible.

If you have a CPA, you should lean on them, or perhaps scout for another CPA if you're current CPA isn't comfortable with the fact pattern.

For any real estate investment, I take the simple approach - is the property going to give me the cash flow pattern I need?

Over time you will be able to do this in a few minutes.5) you should start seeing patterns, now change your criteria and try to run the numbers in your same market and notice the difference.