Business School Type Real Estate Case Studies

Anyone know a good source for free real estate case studies? Another poster posted the following one on 666 Fifth Ave, which I found very interesting: http://www.cacq.com/images/site_images/666%20Fift…

Looking for something maybe like Value Investor's Club, where there are hundreds of write ups on potential investments.

Obviously HBS has a wide range of real estate case studies, but they're all $8, which can add up if you're looking to read hundreds. A former colleague also recommended a Poorvu book full of case studies, which I plan on purchasing.

Thanks in advance.