Property tax protest firms and their process

Posted by Bolingshao@reddit | Dallas | View on Reddit | 21 comments

If I decide to use a firm to do the protesting for me, how would I know that they actually decreased the home value assessment? Would the county send me confirmation saying that "...your property value decreased by X and now it will be taxed on this value".

What I'm thinking is that the firm will say you owe us X because we decreased your assessment; then next year, I see that the value was never decreased in the first place.

Would I get proofs from the county and the protest firm?