Mats Ohlén

Alan Freer is a member of the firm’s management committee, where he focuses his practice primarily on trust and estate litigation. Alan also handles all aspects of trust and estate administration, and routinely represents beneficiaries and fiduciaries in contested matters. He has substantial experience in challenging and defending the validity of estate planning documents, including wills, codicils, trusts and amendments. Alan routinely prosecutes and defends claims for breach of fiduci...

Edward Ayoob is a partner and the co-chair of the Federal Relations Group in Barnes & Thornburg's Washington, D.C., office. His work on behalf of clients includes areas such as taxation, appropriations, Native American, small business, foreign affairs, and various regulatory concerns, among numerous other issues. Edward is the former legislative counsel, tax counsel, appropriations manager, and foreign affairs adviser to U.S. Senate Majority Leader Harry Reid (D-NV). He was also the senat...

CALVIN WARRINER III (Cal) has been with the firm for 32 years and has been a Shareholder since 1991. He joined the firm as a seasoned trial attorney and is Board Certified as a Civil Trial Lawyer by both The Florida Bar and the National Board of Trial Advocacy, as well as being a Diplomate of the American Board of Professional Liability Attorneys. He has been nominated by his peers and received the distinction of being included in the prestigious publication The Best Lawyers in America as wel...

Practicing law since 1995, Taylor Porter Partner John S. Campbell III is engaged primarily in a litigation practice and serves as the co-chair of the firm's professional liability, insurance, casualty, product liability and personal injury litigation practice. In the last several years, his work has mainly involved commercial litigation, construction litigation, breach of fiduciary duty litigation, real estate litigation, class actions, admiralty and maritime cases, premises liability and gen...

David E. Butz is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Family Law and Litigation - Real Estate. David E., who practices law in Canton, Ohio, has been recognized since 2010. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David E. is held by other top lawyers in the same geographic and legal practice area.

Allen McCallie, Chair of the firm's Exempt Organizations Group, concentrates his practice on tax-exempt charitable organizations, conservation law, public entity law, and public/private nonprofit development ventures. For more than 30 years, Allen has enjoyed working on public/private partnerships and ventures which have helped shape the renaissance of Chattanooga into one of the most vibrant cities in the South, through projects such as the Tennessee Aquarium, Tennessee RiverPark, Miller Pla...

Lindsay V. Mason is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Family Law Mediation. Lindsay V., who practices law in Boston, Massachusetts, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lindsay V. is held by other top lawyers in the same geographic and legal practice area.

John McIlvery is a founder and Partner of the firm. John is the chair of the firm’s Public Securities Practice group . John’s practice is focused on corporate securities, mergers and acquisitions, venture capital financing, and general corporate and business matters. John McIlvery has represented clients in a wide variety of industries and businesses, including Internet and e-commerce, apparel, medical device, semiconductor, biotech, entertainment, technology and manufacturing. He...

William Thacker’s practice concentrates on traditional labor matters, employment litigation and day-to-day counseling of clients on the various employee and labor relations issues that arise within their organizations. He advises clients during union representation campaigns and elections as well as non-Board recognition processes, including the negotiation and administration of card-check recognition agreements. Mr. Thacker negotiates collective bargaining agreements; advises clients r...

Emily Lippold Gummer is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property. Emily Lippold, who practices law in New Orleans, Louisiana, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Emily Lippold is held by other top lawyers in the same geographic and legal practice area.