Ryan T. Purpura

Attorney Shaw is Chairman of the Firm's Environmental Group, handling environmental litigation, compliance and permitting matters. He has been involved in several USEPA led investigations of Clients under the Clean Air Act and RCRA. Attorney Shaw also handles complex commercial litigation cases in the federal and state courts, ranging from claims of pesticide damage to crops to large breach of contract claims. Attorney Shaw's most unique experience involves heading a PRP group at a USEPA Supe...

Paul K. Stockman is a lawyer recognized by Best Lawyers in the practice areas of Energy Regulatory Law, Environmental Law, Insurance Law and Litigation - Environmental. Paul K. practices law in Pittsburgh, Pennsylvania Best Lawyers has recognized Paul K. Stockman since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Paul K. Stockman is held by other l...

A founding member of Pittsburgh family law firm Pollock Begg, Daniel H. Glasser has negotiated and tried family law cases involving complex issues such as business valuation, tax and equitable distribution for more than two decades. Skilled at preparing difficult cases in short time spans, Dan is known for being a workout specialist on tough cases. Dan is honored to have been voted the 2022 Pittsburgh "Lawyer of the Year" for family law in the Best Lawyers in American peer review process. Dan...

James B. Toohey is a lawyer recognized by Best Lawyers in the practice area of Real Estate Law. James B. practices law in Erie, Pennsylvania Best Lawyers has recognized James B. Toohey since 2019. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which James B. Toohey is held by other lawyers.

Steven W. Zoffer is a lawyer recognized by Best Lawyers in the practice areas of Commercial Litigation, Litigation - Environmental and Litigation - Real Estate. Steven W. practices law in Pittsburgh, Pennsylvania Best Lawyers has recognized Steven W. Zoffer since 2006. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Steven W. Zoffer is held by other lawyers.

Cerfitied mediator and collaborative law practitioner Lindsay A. (Nemit) Siters is a Pittsburgh family lawyer skilled in handling complex divorce and custody cases. She was named a partner at Pollock Begg in 2025. Lindsay uses her experience and affinity for alternative dispute resolution options to help clients through exceptionally vulnerable times. As a certified mediator and collaborative family lawyer, she strives to meet clients’ legal requirements while respecting their privacy, ...

Mariah L. Passarelli is a lawyer recognized by Best Lawyers in the practice areas of Employment Law - Management and Litigation - Labor and Employment. Mariah L. practices law in Pittsburgh, Pennsylvania Best Lawyers has recognized Mariah L. Passarelli since 2018. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Mariah L. Passarelli is held by other lawyers.

Dave Chmiel joined Baum O’Connor Cullen Chmiel in 2009 and focuses his practice in the defense of physicians and dentists, hospitals and long term care facilities and a host of other healthcare and medical providers, including physicians assistants, nurses, physical therapists and certified nurse anesthetists to name a few. Mr. Chmiel pursued his undergraduate degree in political science at the University of Notre Dame in South Bend, IN. Upon graduation, he attended the University of Pi...

Megan Turnbull is a lawyer recognized by Best Lawyers in the practice areas of Education Law and Municipal Law. Megan practices law in Pittsburgh, Pennsylvania Best Lawyers has recognized Megan Turnbull since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Megan Turnbull is held by other lawyers.

Area of Emphasis Matthew Moses is a shareholder in Babst Calland’s Corporate and Commercial Group and is a member of, and past co-chair of, its Energy and Natural Resources Group. Mr. Moses’ practice includes business structuring and governance; mergers, acquisitions and divestitures, particularly dealing with environmentally-challenged assets; real estate transactions and development; information technology; and routine and complex commercial contracts in (among other areas) proc...