Alyson M. Zarro

Willig, Williams & Davidson Partner James S. Beall advises and represents a wide variety of public and private-sector single and multi-employer funds on comprehensive employee benefit and tax matters. He specializes in employee benefits law for the firm’s joint labor-management pension and welfare fund clients, as well as its labor union clients. Jim also represents workers in the longshore, transportation, baking, construction, hospitality and public safety industries. Jim serves a...

Litigation partner Kate Campbell handles environmental, toxic tort and class action litigation and Superfund and RCRA remediation matters*. Since joining the firm in 2003, she has developed considerable experience in defending complex toxic tort claims for personal injury, wrongful death, medical monitoring and property damage, in representing potentially responsible parties across the country in CERCLA and RCRA matters, and in litigating federal, state and private enforcement actions under a...

Michael Fenerty is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Michael, who practices law in Philadelphia, Pennsylvania, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael is held by other top lawyers in the same geographic and legal practice area.

Matthew H. Kamens joined the firm’s Philadelphia office in April 2009 as senior counsel in the Business Law Department. A member of the Private Client Services Group, Matthew concentrates his practice in trusts, estate and business planning matters, as well as complex estate administration. Matthew has significant knowledge of life insurance and its structuring in estate planning contexts and also serves as a trustee of a number of significant trusts holding liquid and nonliquid assets ...

R. Christopher Raphaely is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. R. Christopher, who practices law in Philadelphia, Pennsylvania, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which R. Christopher is held by other top lawyers in the same geographic and legal practice area.

Matt Haverstick is a managing partner of the Firm and a partner in the Litigation Department. He represents government officials, private entities, and individuals in high-profile, media intensive litigation and appeals, ranging from major grand jury investigations to Pennsylvania Supreme Court arguments over the constitutionality of state laws. Referred to in media reports as “counsel of choice for state Republicans in a number of recent policy fights” for his work on matters tha...

Guy Matthews is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Guy, who practices law in Media, Pennsylvania, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Guy is held by other top lawyers in the same geographic and legal practice area.

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...

Roy DeCaro has tried more than 200 jury trials to verdict during his legal career, first as a prosecutor and now as a civil attorney. He has achieved on behalf of his clients over a dozen verdicts in excess of $1,000,000.00, and two verdicts in excess of $10,000,000.00. So, it is little surprise that Best Lawyers® recognized Mr. DeCaro in 2018 as the “Best Personal Injury Lawyer of the Year” for Philadelphia. Roy has been selected to the Super Lawyers Top 100 list for over 20 ...

Doreen Y. Trujillo is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. Doreen Y., who practices law in Blue Bell, Pennsylvania, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Doreen Y. is held by other top lawyers in the same geographic and legal practice area.