David Marion concentrates his practice in business litigation, antitrust and securities class actions, professional liability and communications law and alternate dispute resolution. David acts as both plaintiffs and defense counsel in litigation involving ERISA, securities, Civil Rights Act Violations, RICO actions and class actions.

David has achieved numerous noteworthy victories throughout his career including substantial jury verdicts before federal and state courts, the defense of a major public utility in a precedent-setting federal ERISA class action and victories in the U.S. Supreme Court and state and federal appellate courts. He was appointed by the U.S. District Court as Receiver in a Securities and Exchange Commission civil action involving a Ponzi scheme, and as special master in complex federal cases.