O’Connor & Associates’ mission is to be the leading property tax advocate for taxpayers and drive reforms in the Texas property tax appeal process. Our proven solutions continue to help taxpayers reduce their annual property tax rates. Founded in 1973, O’Connor is the largest property tax consulting firm in the U.S. O’Connor’s team of professionals possess the resources and unparalleled market expertise in areas of property tax, cost segregation and appraisal for commercial and residential real estate. With our proprietary protest filing system, we file more lawsuits and settle more binding arbitration cases than any other tax consulting firm in the nation. O’Connor provides its customers with property tax protests values ranging from $40,000 to $10 million. In 2016, the firm filed more than $2 billion and 185,000+ protests of assessed value on behalf of its residential and commercial clients. For the 2015 tax year, the firm lowered assessed value by more than $1.6 billion, resulting in an estimated tax savings of around $44 million (not including exemption data).