SD R,
I wouldnt write it off to fraud so quickly. I have sold houses where the MLS data was accurate as reported and the realist data was wrong (i.e. much more than it sold for). there was no monkey business and I told my client to contact the assessor to make sure they arent being charged RE taxes on the higher amount. This is jsut one example and may not be the case of the one Carlsbadliving brought up. Nonetheless, there are mistakes in the tax records.