Karin A. DeMasi

As a Partner at Cole-Frieman & Mallon LLP, William “Bill” Samuels leads the firm’s Intellectual Property (IP) practice. Bill provides advice and counsel to clients with regard to obtaining, protecting, and commercializing intellectual property in the U.S. and around the world. With his clients coming from a wide variety of industries and ranging from start-up companies to multinational corporations and funds, Bill tailors his recommendations and client options in a manne...

Bradley I. Ruskin is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Sports Law. Bradley I., who practices law in New York, New York, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Bradley I. is held by other top lawyers in the same geographic and legal practice area.

Michael P. Zweig is an experienced and accomplished litigator who maintains a diverse national practice with an emphasis on complex litigation, business torts, entertainment and media litigation and employment/contract matters. Michael litigates and arbitrates cases throughout the United States, frequently through trial, representing clients in high-profile, high-stakes litigation involving breach of contract, false advertising and deceptive trade practices (including Attorney General investi...

Diana R. Clarkson is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Compliance Law. Diana R., who practices law in New York, New York, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Diana R. is held by other top lawyers in the same geographic and legal practice area.

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

James Rosenfeld is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - First Amendment. James, who practices law in New York, New York, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James is held by other top lawyers in the same geographic and legal practice area.

Joel H. Rothstein is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Joel H., who practices law in New York, New York, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joel H. is held by other top lawyers in the same geographic and legal practice area.

Stephen Younger, Past President of the New York State Bar Association, is a leading commercial litigator who is also well-known for his alternative dispute resolution work. Having been with Patterson Belknap since 1985, Mr. Younger has more than 30 years of experience as a commercial litigator. As a seasoned trial lawyer, he has tried many cases in federal and state court and before arbitration panels. He also frequently argues appeals, particularly in the appellate courts of New York. Based ...

Elliot J. Wiener co-chairs the firm's New York Matrimonial & Family Law Department. A Fellow of the American Academy of Matrimonial Lawyers with over 40 years' experience practicing family law, he concentrates his practice in the areas of matrimonial and family law including divorce, custody/visitation, support, and related matters. He has a particular interest in child custody and visitation issues and in trial work. Mr. Wiener is also a trained mediator and has been selected by other ma...

Jill Darrow focuses on financial services and private equity transactions, guiding clients through the tax aspects of fund and management company formation, partnership transactions and business acquisitions. Jill's broad knowledge, clear communication and practical advice make her a valuable part of our financial services and private equity representation.She speaks at conferences sponsored by Financial Research Associates and the Practicing Law Institute.