The concept is simple (see the above comparison to a cash out refi), but the calculations can be complex.  

@Jared Jernigan I've never been a part of an accountability group but like the concept.

Vena came later, but she is good and has a very precise and methodical way she teaches concepts that is great for investors new to the ideas.As I started delving into this community of creative investors I started coming across many other investors that have helped me learn this area of investing and I feel I have been drinking from a fire hose for the last year as I ramped up on this, but it is so worth the effort.

My conception is that these notes need to be drawn up at the same time as the Purchase agreement....

Initially, he had a standard walled-in staircase on the second level but I found a metal guy who provided this unique open staircase concept with just a metal rail bar wall.

One of the best books to understand the concept as a whole for commercial real estate is "crushing it in apartments and commercial real estate" by Brian Murray. 

All of this is multiplied largely when it comes to housing. if you grasp the concept of the change in a gallon of milk you can grasp the change of prices where the gallon of milk will live after its bought. 

I personally despise Airbnb (the leadership/operational effectiveness, not the concept itself), but that's another forum, another day.

I feel like this is more of a philosophical question, so excuse the squishiness of my answer.In short, the problems are complexity, entropy and variability.Think back to all of the estimations you have ever given (to yourself and others) of how much effort something should/would take vs the actual.

The concept of “infinity cash on cash” is fun to think about, but once you intermingle equity like this, I find it’s more important to look at the metrics globally.