Brian P. O'Neil

After nearly thirty (30) years of distinguished full-time practice in the area of Construction Law, Margaret Underwood is now Of Counsel to Horn Williamson. During her full-time practice of law, Ms. Underwood provided high-level legal services to local, national, and international owners, contractors, and subcontractors on many of the largest and most prestigious construction projects located in and around the Philadelphia Area and as far away as Europe and the Marshall Islands. Her extensive...

Mr. August is a nationally recognized tax lawyer who advises clients on income tax matters, including foreign taxation of U.S. businesses and U.S. taxation of foreign businesses and investors. In many instances he works with corporate and real estate counsel on selecting the proper entity in which to engage in domestic or foreign business or investment operations. He has been involved in structuring as well as negotiating merger and acquisitions, both taxable and non-taxable, joint ventures, ...

Nina K. Markey is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Nina K., 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 Nina K. is held by other top lawyers in the same geographic and legal practice area.

Joseph E. Mayk is a top attorney recognized by Best Lawyers in the practice area(s) of Financial Services Regulation Law. Joseph E., who practices law in West Chester, Pennsylvania, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joseph E. is held by other top lawyers in the same geographic and legal practice area.

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

Leonard Lundy is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs and Personal Injury Litigation - Plaintiffs. Leonard, 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 Leonard is held by other top lawyers in the same geographic and legal practice area.

Theodore J. Murphy - Ted has been involved with Immigration matters since 1993. He is currently the founder and managing attorney of the Murphy Law Firm in West Chester, Pennsylvania. Ted is a member of the American Immigration Lawyers Association (AILA) and the Chester County, Pennsylvania; Pennsylvania and American Bar Associations. He was an adjunct professor at The Beasley School of Law, Temple University. He is a frequent lecturer on immigration matters. Ted has been on the faculty at th...

Kayci D. Petenko is a top attorney recognized by Best Lawyers in the practice area(s) of Nonprofit / Charities Law. Kayci D., 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 Kayci D. 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.

Shira R. Yoshor is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Employment Law - Management and Litigation - Labor and Employment. Shira R., 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 Shira R. is held by other top lawyers in the same geographic and legal practice area.