There are two main factors that you can use to track gentrification, so why can't they be used to track the reverse?

@John BerjIf cash flow is a top priority, factor in HOA fees (common with new builds) and confirm rent comps to ensure the numbers work.

I’m talking about getting thorough with expense estimates, factoring in property taxes, insurance, and a cushion for maintenance.

Like everything else... if the numbers work and all the other factors at play are good in your opinion.... go for it! 

What is far more interesting is not the dumb greedy investors that refuse to do an ounce of due diligence before investing and then act shocked but rather the scores of sycophantic, mindless automaton like investors in these reviews who give them 5 stars and say it's the best investment they have ever made in real estate, interspersed with RADD apologizing to 2/3rds of the reviewers for halting distributions and redemptions, which in one review they even hilariously claim that "halting redemptions is common practice in real estate."

This is bad math, once most people factor in their income tax bracket. 

Obviously, two factors are responsible for what will likely be more than doubling our money in 3 years.  1.

. #1 is the primary reason, but #2 does factor in as well.

Yes, I use Zillow reporting as a start and look at other factors.

In my own journey, capital was always the limiting factor, so SFH's are just the default.