Mark G. Claypool

Mr. O’Connor has been a member of the firm for 20 years. His practice is devoted to the representation of physicians and hospitals in medical malpractice cases. Brian also represents health care providers in litigation before the Pennsylvania State Board of Medicine. Mr. O’Connor has tried over 45 jury trials on behalf of physicians and hospitals throughout the counties of Western Pennsylvania and the Federal District Court in Pittsburgh and Erie. Mr. O’Connor has participat...

Paul K. Stockman is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Regulatory Law, Environmental Law, Insurance Law and Litigation - Environmental. Paul K., 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 Paul K. is held by other top lawyers in the same geographic and legal practice area.

Christopher L. Voltz is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Christopher L., 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 Christopher L. is held by other top lawyers in the same geographic and legal practice area.

A Director in Houston Harbaugh's Estates and Trusts Group , Heidi Rai Stewart assists individuals in the creation of estate plans, probate, and estate and trust administration. Her work in these areas extends to Special Needs planning and Long Term Care planning, including Elder Law . As a natural outcome of her practice, she has gained significant experience in Orphans’ Court matters such as Will contests, guardianships, and actions relating to undue influence, and breaches of fiduciar...

Megan E. Farrell is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Megan E., who practices law in Pittsburgh, Pennsylvania, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Megan E. is held by other top lawyers in the same geographic and legal practice area.

John E. Black III is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Individuals and Litigation - Labor and Employment. John E., who practices law in Pittsburgh, Pennsylvania, has been recognized since 2010. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John E. is held by other top lawyers in the same geographic and legal practice area.

Timothy A. Gallagher is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Timothy A., 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 Timothy A. is held by other top lawyers in the same geographic and legal practice area.

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...

Brian D. Balonick advises his clients in all aspects of labor and employment law, including traditional labor, employment discrimination, and trade secret litigation. He helps clients avoid litigation by developing preventive strategies to remain in compliance with labor, employment, and wage and hour laws. He provides on-site training programs to assist employers in creating an issue-free workplace. When employers find themselves facing employment litigation, Brian has assisted them in any a...

Area of Emphasis Frank Clements is a founding shareholder of Babst Calland. Mr. Clements is experienced in a variety of corporate, finance and commercial transactions. He has a strong background in energy and environmental law. His practice is focused on business transaction work, particularly the acquisition and disposition of businesses and the formation of joint ventures, predominately in the industrial sector. In addition to his M&A practice, Mr. Clements has structured and negotiated...