I'm also looking to learn any other methodologies, tips, tricks, and so forth that I can add to my toolkit.

The more neutral team that did a study with a more thorough methodology found a net positive for the economy.

Or some methodology used to charge it back?

However, its important to think about strategy and methodology, because as basic processes become automated, you begin to see how much more of the entire investment function can be automated.

Patrick does really great analysis of the SF Bay & RE cycles.)http://www.paragon-re.com/3_Recessions_2_Bubbles_and_a_Baby (scroll down to HAI section, which didn’t exist before I met with Patrick last Friday, 4/24 ;)GTD Inspiration – ALL ABOUT TAKING ACTIONIn a way, this is a little bit of a repeat of the SF Real Estate Summit that I put on last November (with the 2nd annual event in planning..): By reaching out to those more successful than myself, and showing them the effort I’m putting into creating something valuable for everyone, it attracted amazing investors I never could have imagined!

Using Zillow's data and the same methodology I also get about 2% average using the last 5 years of taxes.

Definitely have learned that methodology. 

Not following a prescribed qualification methodology can create big problems for you if the prospective tenant you turned down can find someone to take on the case pro bono.

I agree with @Nathan Paisley , that list is too old if leads are already on zillow.I've worked with probate leads and my methodology is as follows:1. 

This post looks at a somewhat newer investment philosophy/methodology, one that a lot of investors (and homeowners) are contemplating or embracing as housing prices and scarcity push some buyers out of the higher-priced city markets.