William Helbling

Area of Emphasis Jim Corbelli is a shareholder in the Litigation and Energy and Natural Resources groups of Babst Calland. Mr. Corbelli is past co-chair of the Firm’s Litigation Group. He has acted as lead trial counsel in a wide variety of complex commercial, intellectual property, toxic tort, environmental and natural resource, and energy litigation cases. Mr. Corbelli has extensive environmental litigation experience representing clients before the Environmental Hearing Board in Penn...

Marcelle M. Theis is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Defendants. Marcelle M., who practices law in Pittsburgh, Pennsylvania, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marcelle M. is held by other top lawyers in the same geographic and legal practice area.

Area of Emphasis Sean Keegan is senior counsel in the Litigation and Employment and Labor groups of Babst Calland. Mr. Keegan has a broad range of litigation experience in several practice areas including commercial, labor and employment, energy, and maritime. He has experience defending shareholder dispute claims, oil and gas lease disputes, insurance claims, and premises liability claims. Mr. Keegan has represented clients in both state and federal courts throughout the United States. Backg...

Area of Emphasis Mark Dausch is a shareholder and past co-chair of the Litigation Group of Babst Calland. He is an experienced trial lawyer who concentrates his practice on energy and environmental litigation. As lead trial counsel, Mr. Dausch has tried several high-stakes lawsuits in federal, state and administrative courts, as well as before arbitration panels. His trial work includes successfully representing businesses in multiple complex energy and environmental trials involving claims i...

Gary’s practice consists primarily of federal and state court litigation , arbitrations, and other alternative dispute resolution proceedings. Much of his practice involves multi-party claims, including class action litigation. Gary has represented both individual and corporate clients in many different types of litigation and has an active mediation and arbitration practice. Gary has been lead counsel in complex litigation involving: Officers and directors liability Corporate disputes ...

Brad Trust is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Brad, who practices law in Pittsburgh, Pennsylvania, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brad is held by other top lawyers in the same geographic and legal practice area.

John M. Cerilli represents employers with respect to all aspects of labor and employment law. His traditional labor law practice focuses on: The National Labor Relations Act Strikes and picketing Labor contract administration Arbitration Collective bargaining Union organizing Plant closings and mass layoffs Corporate transactions Wage and hour In his employment practice, John provides counseling and training on a wide range of employment matters, such as: Reductions-in-force Personnel policie...

Maria Greco Danaher regularly represents and counsels companies in employment related matters. She specializes in representing management in labor relations and employment litigation, and in training, counseling, and advising human resource departments and corporate management on these topics. Her prior experience includes having acted as in-house litigation counsel for a Fortune 100 company based in Pittsburgh , where she assisted in oversight and management of litigation done by outside cou...

Christopher Jacobs is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law, Litigation - Insurance and Personal Injury Litigation - Defendants. Christopher, who practices law in Pittsburgh, Pennsylvania, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christopher is held by other top lawyers in the same geographic and legal practice area.

John W. Lewis II is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Governance Law and Mergers and Acquisitions Law. John W., who practices law in Pittsburgh, Pennsylvania, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John W. is held by other top lawyers in the same geographic and legal practice area.