Buena Vista's older, established housing stock is exactly where a roll error is most likely to hide, since a home built decades ago has usually been renovated at least once without every permit finding its way back onto the city's record. Pulling the property record card before you file lets you check what the assessor is actually working from.
Recent comparable sales carry the most weight with the Board of Revision. 3 to 4 comparable sales from Buena Vista, adjusted for lot size and condition, make a stronger case than an opinion about the neighbourhood generally being overtaxed, since the board weighs evidence, not sentiment.
A tax appeal and a sale are often the same underlying question, since both start with what the house is actually worth today. Get your hand-reviewed valuation from Joel Dyck.