Mary Anne Mason


Retired Partner

Crowell & Moring LLP

Mary Anne Mason is a retired partner who practiced in Crowell & Moring‘s Antitrust & Competition Group and was resident in the firm’s Washington, D.C. office. Mary Anne focused on antitrust, competition and economic regulatory law. Her government investigations practice involved merger clearance and advice.

Mary Anne handled investigations and litigation matters related to price-fixing and anti-competitive conduct in several industries including the energy, life sciences, healthcare, consumer products and hospitality industries. Her government investigations practice involved merger clearance and advocacy for a diverse client base before the Department of Justice (DOJ), the Federal Trade Commission (FTC), the Commodity Futures Trading Commission (CFTC), and state attorneys general. Additionally, Mason was extremely knowledgeable across multiple sectors about federal regulations regarding market manipulation and Title VII provisions of the Dodd–Frank Wall Street Reform and Consumer Protection Act that impact over-the-counter commodity swaps markets. Mary Anne had a particular strength in energy markets working with clients on a wide range of economic regulatory policy issues, such as regulation of energy commodity derivatives and enforcement of market manipulation rules by the FTC, CFTC and FERC.

Mary Anne served as pro bono counsel to the Maine Lobstermen’s Association, an organization that supports a sustainable lobster resource and the traditional fishing communities that depend on it. She received her J.D. from Georgetown University Law Center and her B.A. from the College of William & Mary.