My understanding is this:The "50% Rule" should only be used as a simple formula to weed out properties when browsing through listings looking for buy-and-holds before doing due diligence in order to save the investor some time.

Look up Dave & Franks formula to ballpark the value of a park.

I would think so...many people are buying homes in bunches out there it kind of a secret gold mine people dont talk about because they dont want other investors hogging the good stuff not only detriot but any place similar desperation and depressiation are the exact formula for getting rich..if it werent for the great depression we would have no warren buffet.

The investment formulas and mindset that it asks you to get into for success are great tools.

Starting out or even once you get deals under your belt, focus on getting people to know, like and trust you as part of the formula.

I will write that down so it will be a normal part of my formula when analyzing a deal.

If you can peek inside from a windows determine if it will be a simple fix and flip, a middle of the road or a total rehab, use this simple formula that I use for a quick estimate.

I have seen the numbers and I understand why it works, I just don't have the nuts and bolts of it.In a COBOL programming class many years ago, the class material provided the loan amortization formula and it was up to us to write the code to produce an amortization schedule.

It has formulas on everything real estate related.

The leading manufacturers alter their formulas to specifically perform well on the CR tests so they get ranked near the top.