One of them sent me a Monte Carlo simulation using Python and Jupyter Notebooks back in Nov, using a data set for housing and it was a total 'are you kidding me?

I am new to the Real Estate Investing world and just starting out by running BRRRR deal analysis simulations and continually coming up with the same issue.

I have paid for education many times in my business life and even today I am going to pay 500 bucks for an hour in the Simulator to keep my flying skills fresh  LOL.. 

Here, if you're going with the theming approach, that theming is all people are going to care about.To put it another way, if people are deciding between a bowling alley or a golf simulator or a $10k arcade machine or a theater or an X-Wing, the dresser in the 8th bedroom or the coffee table in the 3rd living space aren't going to drive their decision. 

Once you have a full report you can run a few simulators like "rapid rescore", "Wayfinder" or "Credit Wizard" these are all tools most banks and lenders use to help a borrower see what can be paid down or off to get a specific score.You also have options to inquire about "Pay for delete" collections and check you statute of limitations on collections based on the state. 

How many people want a golf simulator?

That being said, you'd fare much better, especially in the non-QM world, with a little improvement to your credit score (Ideally find a lender who can run a credit simulator to see what steps to take to raise your score quickly)Non-QM lenders tend to either only lend to credit scores over 700, or hit really hard with interest rate for lower credit scores when allowed.

Background: I am a Simulation Analyst (research, data analysis, computer modeling, etc) Not REI , trying my best to learn as we speak.Looking for buy & hold properties in Middlesex.What means for me is any data that I could use to predict if I am currently buying at the peak of the bell curve or the bottom.

To expand your toolbox, consider the following additional resources:(1) Cashflow Game (sometimes played at local real estate meetups)To test various strategies in a simulation environment, play some games conservatively and other games aggressively.

However, a lot of simulations I did with apartments give me <$100/month cash flow at ~$900/month rent.