Have you ever heard the saying "oh what a tangled web we weave, when first we practice to deceive"? 

You a gambling man?

@Gloria Sheridan,You are correct, ETC has lots of negative feedback not only here on BP but also on the web if you just google the name.

I have a rehab analysis spreadsheet uploaded in my file place which includes a Repair Estimator & Rehab Calculator to help you estimate repair costs and analyze the Max Purchase Price you should offer for a rehab.https://www.biggerpockets.com/files/user/drobertso...There are other good spreadsheets in the fileplace, or BP has their own web-based calculators.

You will never factor out all risk and the web will only prepare you so much. 

Banking on appreciation is gambling.

Some folks are willing to take the risk in the gamble for appreciation, especially here in CA, they are typically purchasing when the market is down, not high as it is now.

The way to make it less annoying is to gamble (like a dollar) with your family for which property the wholesaler wants before opening the mail.

It is not gambling per se, there are real wells with real chances of finding oil, but it is not another class B multifamily value play for sure.   

Web sites that you use to gather information and understand trends etc.