I'm happy to go first:A friend recommended I implement GTD (Getting Things Done) as a productivity system and it has completely changed the way that I work, reduced stress, and the necessity to remember so many things at once.

Through the forums, people will invariably critique or agree with your methodology.

Its something to be very methodical about when doing it alone, or team up with an experienced investor who can walk them through the process and methodology to minimize risk. 

The correct thing to do is to utilize MLS based comps regardless of what other complimentary tool or methodology you may using.

@Ronald McDonald The best way to decide if a cost segregation study will be of benefit to you is to get a no-cost estimate from a company that provides engineering-based studies, the IRS' preferred methodology.

I just developed my own methodology based on what seemed logical to me, and wanting to ground it in some hard statistics.  

To bring this thread back on topic, with your expressed experience as an agent and as an investor I'd be happy to hear your methodology on efficiently assessing and closing on properties.

In other words, when tested against historical data, the forecasting methodology was correct 78% of the time.

DREIA's methodology is mostly shot gunning low ball offers to MLS listed properties.  

Plus a whole lot more...Instead of relying on an app, learn the methodology for estimating repairs and create your own spreadsheets that will reflect your actual costs.