Sean R. Mackin, a former Senior Assistant Attorney General for the Ohio Attorney General's Office, recently joined Plunkett Cooney, one of the Midwest’s oldest and most accomplished law firms, as a member of its Torts & Litigation Practice Group.  

A member of the firm’s Columbus office, Mackin concentrates his practice in the areas of insurance defense and general negligence law. Mackin is an experienced litigator who defends first- and third-party motor vehicle, trucking, premises and product liability claims, as well as insurance coverage cases involving homeowner policies. He also has experience handling matters involving personal injuries, breach of contract, employment disputes, vicarious liability, defamation and construction defects.

Mackin is a member of the Virginia State and Ohio State Bar associations. He received his law degree from William & Mary Law School in 2017 and his undergraduate degree, magna cum laude, from Salisbury University in 2014.

Plunkett Cooney established its Columbus office in 2001. The firm’s Oho practice includes a range of litigation and transactional services in such areas as banking and finance law, bankruptcy, corporate law, real estate, insurance law, product liability, premises liability, professional liability, title insurance, general and commercial litigation, personal injury, premises liability and employment law.

Established in 1913, Plunkett Cooney is a leading provider of business law and litigation services to clients in the private and public sectors. The firm employs attorneys in seven Michigan cities, Chicago, Illinois, Columbus, Ohio and Indianapolis, Indiana.

Plunkett Cooney has received the highest rating (AV) awarded by Martindale-Hubbell, a leading peer review service, as well as recognition by Best Lawyers as one of the nation’s leading law firms. The firm has also received Mansfield Rule Certification Plus 2024-2025 for midsize law firms, which recognizes leaders in diversity, equity and inclusion within the legal industry.

For more information about Sean Mackin joining Plunkett Cooney’s Columbus office, contact the firm’s Director of Marketing and Business Development John Cornwell at (248) 901-4008; jcornwell@plunkettcooney.com.

            ###