While valuation may generally be part art and part science, rebutting and/or defending a valuation introduces additional types of art and science. The stakes are often higher because interested parties are affected by the contested valuation’s outcome, and the narrative can become more nuanced due to conflicting views on a variety of issues. This article endeavors to cut through the clutter and provide practical tips to address some common themes that arise in rebutting and/or defending a valuation report in a contested situation.