You might be able to download this data as a csv from MLS and create an equation, but overall I don't believe that this information would be very useful because value of land depends heavily on zoning and location.

Hell, they may list their unit for rent on Craigslist for weeks before eventually dropping the price later because it's too expensive and they aren't getting applications.Rentometer, as far as I understand, uses data from rented units. 

Ensuring PM is accounted for is a good idea.

A lot of DIY tax software is good, but it does require a decent understanding of the tax law to ensure that you are not missing big tax deductions.I would consider reading information that CPAs put out for free on their blogs (you will find a number of good articles through a simple google search). 

There are systems to ensure your value of information is noticed and you get appropriate value for them, be a college professor.

You can start by looking at the city's page, Best Places and City Data to get you started.

I think the one that will work is to refine existing video camera data summary.Sam ShuehROG Cupertino, CA

Also Megan's data base....

It's supposed to ensure there are no surprises after closing.

Good Evening James,Thank you so much for taking out the time to respond to my question, you provided me with very valuable information that is going to help me in ensuring that I  don't get taken advantage of being new to the industry of realistate.