The $90 is no biggie, it's more a curiosity question.

Welcome ... as a fellow engineer, I can say that you will have many advantages and a few disadvantages.Possible Advantages:You will have the analytical abilities to run the numbers and understand themYou will have attention to detail to execute effectively and efficientlyYou will be good at "systematizing" things to automate them and maintain a high level of quality and consistency in your processYou have intellectual curiosity to try to figure stuff out and know at a deep level how it worksYou may be mechanically inclined and able to understand and debug systems in a property (HVAC, structural, electrical, plumbing, etc.)You will be conservative and understand "margin of safety".

Just wondering if there’s a seminar, article, spreadsheet that would help me create this model for myself mainly to feed my curiosity but also to share with my wife so we can understand where this can realistically take us.

@Pat Di Orio Out of curiosity, what prevents your boots on the ground home inspector from just putting the property under contract himself and cutting you out completely?

My curiosity is peaked when you indicate Bad Dude moved in, indicating she had 5 dependents on her original lease. 

Charles Marshall-Can you check the calculation on equity accrued?  

If you get a regular policy and are cancelled the builders risk policy will be much higher mid rehab than at closing when you buy) and property taxes that are accruing, And cleaning if it sits for awhile while being marketed for sale or rent.Good luck, hard money used wisely can increase your profit!

Out of curiosity do you ask for the original rental application when doing your due diligence or just the rent roll and current lease?  

If you have a rehab budget, then ask if interest accrues on the total loan amount from the get-go, or if it only accrues on amounts funded?

@Carson Fox Hello Carson,Out of curiosity, have you looked into a free basic business checking account that has no fees, or minimums before setting up the processes described in the book?