Steven D. "Steve" Costello

Paul R. McIntyre is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law. Paul R., who practices law in Philadelphia, Pennsylvania, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Paul R. is held by other top lawyers in the same geographic and legal practice area.

William J. Leahy is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. William J., who practices law in Philadelphia, Pennsylvania, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William J. is held by other top lawyers in the same geographic and legal practice area.

Partner Robb Fox has a diverse practice involving compliance counseling, litigation and transactional work for clients in the waste, chemical manufacturing and development industries and on behalf of cities and municipalities. He is known nationally for his work under the federal Superfund law including handling many high profile Superfund matters such as the Keystone Landfill matter, featured on 60 Minutes, and the Gowanus Canal and Newtown Creek sites. He regularly litigates Superfund issue...

John M. Nolan is Managing Shareholder and Litigation Manager of the Philadelphia, Pennsylvania office and a Shareholder in the Morristown, New Jersey office of Jackson Lewis P.C. Mr. Nolan has been with Jackson Lewis since December 1994. Prior to joining Jackson Lewis, Mr. Nolan was an Assistant District Attorney in New York and was a senior associate at a large, full service law firm in central New Jersey. Mr. Nolan is a trial attorney and has tried over 75 jury and non-jury trials to verdic...

Kevin Birkhead is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Kevin, who practices law in Fort Washington, Pennsylvania, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kevin is held by other top lawyers in the same geographic and legal practice area.

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

Brett A. Datto is Of Counsel at Weir LLP in Philadelphia, Pennsylvania, where he focuses on complex commercial litigation and labor and employment matters . With more than 36 years of legal experience, he has represented businesses, professionals, and individuals in a wide range of disputes involving multi-million-dollar contract claims, construction litigation, environmental matters , banking and insurance disputes , real estate litigation, employment claims, business torts, and state and fe...

Sol H. Weiss is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs, Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Sol H., who practices law in Philadelphia, Pennsylvania, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sol H. is held by other top lawyers in the same geographic and legal practice area.

Andrea M. Kirshenbaum is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Andrea M., who practices law in Philadelphia, Pennsylvania, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andrea M. is held by other top lawyers in the same geographic and legal practice area.

Walter Weir, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law and Commercial Litigation. Walter, who practices law in Philadelphia, Pennsylvania, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Walter is held by other top lawyers in the same geographic and legal practice area.