I have documentation on all the things wrong with my house that needs to be fixed if I were to sell. So value of my property overvalued compared to houses that sold near me and have renovations.

I got contractors to give me estimates, photos and a estimate to fix everything. And every year I try to fix one thing or so if possible. But the price of your property will take a hit.

However you get lower insurance and lower taxes. I don't care cause I ain't moving anytime soon. Even if I did I'd still need to fix stuff. It's worth it to fight it.

The local tax accessor will cave since they don't want to deal with hearings, etc. Last time I did a phone call hearing and that was it.

Find people that had success and do the same. That's what I did