He has represented clients in construction, toxic tort, and product liability litigation, as well as state and local tax, outsourcing, contract, environmental class action, and negotiable instrument litigation. He has tried cases in state and federal courts in Texas and across the country and represented clients in arbitration. Roy has served as national coordinating counsel for a group of Fortune 100 companies in lawsuits involving tens of thousands of plaintiffs in more than 20 jurisdictions. As national coordinating counsel, he has served in leadership roles on steering committees and in joint defense groups.