At some point, it happens to all homeowners: you get an assessment notice in the mail that contains the fair market value of your home, only you don't actually agree with the amount listed. Maybe it's too high because there is some type of issue that the assessor couldn't have possibly been aware of. Maybe the market isn't nearly as strong as they assume it to be. Regardless, the end result is the same: suddenly you're paying far more money in property taxes than you should be.