The methodology will be no different (study my butt off until I'm at the top of my game. 

In layman’s parlance one could say it is a book about timing the market.It follows the Trass Methodology developed by the author of the same name which basically states that the cycle is driven by 16 specific macro-economic indicators (key drivers) and by monitoring the ongoing trends in conjunction with one another, one can successfully predict the markets future movements.

Roof is 5 years old, water heater is 2 years old, HVAC is 9 years old, washer/dryer are ancient so that's probably going to be my first expense once it breaks.

They use an alternate underwriting methodology. 

Hi Brandon, I am looking for a methodology as well.

References:- https://www.raleighnc.gov/content/PlanDev/Documents/Zoning/Rezoning/TextChanges/2015/TC-07-15.pdf- https://www.raleighnc.gov/content/extra/Books/PlanDev/UnifiedDevelopmentOrdinance/#136 - google: "raleigh short term rental ordinance" - Roomscore methodology

If I understand the question correctly, you realized you made it to real estate - when you get  "the confidence" that you have the ability to deal with any real estate challenge (tied to the methodology you are working on such as - Flips, rental or wholesale, etc) ,though every challenge is unique and never encountered before.It's like any job that is not exactly repetitive but similar methodology, right ? 

And not for nothing, as a taxpayer you should appreciate that -- they've sold nearly a million foreclosed properties in the past 7 years and using this methodology, lost far less money as a consequence. 

Methodology is on the zillow site at http://www.zillow.com/research/data/  The following is for SFR data, with each bar (line) being a month: The following chart (also from Zillow) shows the condo valuations, same area same time frame.

I looked at the study methodology, specifically this Raleigh Feburary 2016 report http://files.zillowstatic.com/research/public/realestate/ZHVI.Raleigh.395012.pdf and had one of those 'blink' moments when looking at Garner numbers.