A mainstream provider has made the tax rolls available to its customers!
ForeclosureRadar has announced their new service:
You have to search by property address only, not by owner name.
But you will find data that could be helpful; the bedrooms/baths/square-footage counts recorded at the county (which is typically what is permitted), original loan balances, automated valuations, aerial maps with property boundaries, and “heat maps” showing the estimated loan balances for the neighborhood:
Casual users might not get enough benefit to warrant paying the $50 per month membership dues, because most of this data is available for free from your realtor or other sources. But it is nice to see it all out in the open!