The approach to investing in real estate should be driven by value.

We are brand new and are in the process of gathering all the data to arrive at our maximum total offer allowance.

On the other hand, property owners benefit greatly by keeping sales data out of the hands of the taxation powers.  

Median income rates, rent rates for that area and if it is home owner driven verses lots of renters4.

I would also point out that all these sites only have data going back to the crisis.

Would the local MLS keeper have that data? 

I am a very driven individual having gone to a collegiate high school where I earned my Associates degree by age 18.

The person can use the “riding for dollars” methodology or research city records. 

I can bet that 10 years from now most property managers (except the best ones for sure) will be out of business, replaced by a more efficient, investor/tenant friendly and technology driven system, at a much lower cost.

I send thousands of letters each month, and the source I use for data is a division of first American Title called Core Logic (or RealQuest).There are obviously many ways to get data, but in my years in this business I have found that Core Logic really is the industry standard for real estate mailer data for all types of real estate.The first thing I like about Core Logic is that the data is usually amazingly fresh, and they even tell you how old it is before pulling it.