Incorporated on October 19, 1908, Keystone Appraisal Company has been a leading real estate appraisal firm in the Tristate area for more than a century. Knowledge, experience, sound judgment and integrity are the foundations of our Company. We maintain a heritage of providing client-focused appraisal and consulting services. Timely delivery of reports is assured in compliance with the Uniform Standards of Appraisal Practice (USPAP), and The Code of Ethics of the Appraisal Institute. Many of our assignments evolve from properties impacted by environmental contamination and ad valorem tax appeals. We have provided expert testimony/litigation support in federal, state, and local courts including the U.S. District Court and the U.S. Bankruptcy Courts in the Eastern Districts in Pennsylvania and New Jersey.