“The builders benefited by making it appear that their condos were selling and maintaining their value, while members of the conspiracy obtained the kickbacks,” according to the U.S. attorney’s office.”http://www.latimes.com/socal/daily-pilot/news/tn-d...

I have found, police reports, code enforcement issues, once I found a rent roll!!

I run a mortgage and real estate office in LA and have worked for multiple investors looking to get into the SoCal rental game.

In that situation you would tell the tenant to call the police. 

In May my friend and sometimes contractor that has an office next to my mixed-use commercial bldg ran into me one day and asked if I'd give him a price opinion on a house he and his 2 siblings inherited from their brother. 

Plenty of office space, lab testing space, and a parking garage. 

If I were I would first look at the Tax Assessors Office or Tax Records Office (online for that City) and see who the owner is.

Or, you can ask me whatever about Subject To, Wraps, Lease Options, Land Contracts, Seller Financing & regular financing (I once upon a time was a loan officer) and the Phoenix / Glendale / Mesa / Gilbert / Chandler market of AZ is a great place for doing these.

When UCLA forecasts this stuff it is pretty detailed and even considers airport traffic, port traffic, warehouse and office availabilty, developers and more if you are interested in that stuff they do that quarterly. 

I tried to do a deed in lieu with the bank because of the initial issues I had with their mortgage officer of being unethical.