Brian R. Ellixson

Cheryl A. Upham is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Cheryl A., who practices law in Philadelphia, Pennsylvania, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Cheryl A. is held by other top lawyers in the same geographic and legal practice area.

W. John Vandenberg is a top attorney recognized by Best Lawyers in the practice area(s) of Immigration Law. W. John, who practices law in Philadelphia, Pennsylvania, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which W. John is held by other top lawyers in the same geographic and legal practice area.

Kelly Anne Donohoe is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Kelly Anne, who practices law in Philadelphia, Pennsylvania, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kelly Anne is held by other top lawyers in the same geographic and legal practice area.

Nataliya Rymer focuses her practice on employment-based immigration and compliance. She represents employers of various sizes across all industries, helping them plan and effectuate movement of an international workforce to the United States, as well as with the nuances involved with hiring foreign nationals. She has considerable experience in a wide range of employment-based immigrant and non-immigrant matters, including those involving professionals, managers and executives; educational ins...

Arthur R. Armstrong is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law. Arthur R., 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 Arthur R. is held by other top lawyers in the same geographic and legal practice area.

Thomas G. Wilkinson, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Ethics and Professional Responsibility Law and Professional Malpractice Law - Defendants. Thomas G., who practices law in Philadelphia, Pennsylvania, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thomas G. is held by other top lawyers in the same geographic and legal practice area.

The Honorable Geoffrey W. Dlin (ret.) has returned to private practice and joined KK &O after serving more than 15 years as a Workers' Compensation Judge. As a judge, he decided thousands of contested workers' compensation cases and frequently taught other lawyers, judges and private organizations about workers' compensation matters. In addition to those traditional roles of a judge, Geoff developed a statewide mediation practice. His skills in settling workers' compensation cases were hi...

Ellen C. Brotman began her career as a law clerk in the United States District Court, Southern District of New York. She has served as an Assistant Federal Defender in Philadelphia, PA and practiced in small, medium and large firms with a focus on criminal defense, appellate advocacy, professional responsibility and ethics. She has defended a wide variety of high-profile criminal cases, including political and public corruption, securities fraud, tax fraud, money laundering, currency structur...

Eric B. Pearson is a top attorney recognized by Best Lawyers in the practice area(s) of Workers' Compensation Law - Claimants. Eric B., 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 Eric B. is held by other top lawyers in the same geographic and legal practice area.

Jeffrey I. Pasek is past chair of the firm's Labor & Employment Group. Working out of the firm's offices in Philadelphia and New York, he maintains a national practice of representing employers in all facets of labor and employment law. Jeff has handled collective bargaining negotiations and grievance arbitrations in a variety of industries, including apparel, construction, education, entertainment, food, healthcare, retail and transportation. A former management trustee of a nationwide r...