ATTORNEYS

Stanley W. Kallmann

Rutgers University

Rutgers Law School

Stanley Kallmann received a B.A. from Rutgers University. He graduated from Rutgers Law School, where he was Projects Editor for the Rutgers Law Review. After graduation from law school, he clerked for two years for the Honorable James A. Coolahan, U.S.D.J., United States District Court for the District of New Jersey. He was an associate of Stryker, Tams & Dill in Newark, New Jersey for two years before becoming an Assistant United States Attorney for the District of New Jersey.

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Mark L. Antin

Tulane University

Temple University Law School

Mark Antin graduated from Temple University Law School. He joined Gennet, Kallmann, Antin, Sweetman & Nichols, became a partner of the firm, and now serves as its co-managing partner. He has over 35 years of trial experience, specializing in commercial insurance and complex, large loss claims in the state and federal courts, including insurance coverage and subrogation matters, first-party arson, fraud defense and similar matters.

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Richard S. Nichols

University of Alberta

Southern Methodist University Law School

Richard Nichols graduated from Southern Methodist University Law School, after obtaining his Bachelor of Business Administration from the University of Alberta, Edmonton, Canada. He has had considerable trial experience before and since becoming associated with the firm. He has successfully tried many first-party coverage defense and third-party liability matters. He is certified by the Supreme Court of New Jersey as a Civil Trial Attorney.

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Donald G. Sweetman

Rutgers University

Seton Hall University Law School

Donald Sweetman graduated from Seton Hall University Law School, after obtaining his B.A. from Rutgers University. Upon graduation, he served as Law Clerk to the Honorable Walter R. Barisonek, Judge of the Superior Court of New Jersey, Union County. He is a litigator with considerable trial experience in the state and federal courts of New Jersey and New York. Mr. Sweetman joined Gennet, Kallmann, Antin, Sweetman and Nichols and became a partner of the firm in 2003.

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Nancy E. Zangrilli

Associates - (Of Counsel: Pennsylvania Managing Attorney)

Nancy E. Zangrilli graduated from The Dickinson School of Law of The Pennsylvania State University, after obtaining her B.A. in Philosophy and Psychology from Fairfield University. After graduating law school, Ms. Zangrilli clerked for the Honorable John D. Kuhn of the Court of Common Pleas for Adams County, Pennsylvania. She then entered private practice as a litigator in both federal and state courts specializing in the areas of products liability, premises liability, fire litigation, first-party coverage and subrogation.

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William G. Hanft

Associates - (Of Counsel)

William G. Hanft graduated from University of Miami School of Law, after obtaining his B.A. from Antioch College. After graduation, he served as Law Clerk to the Honorable William H. Kirchgaessner, Chief Administrative Law Judge, and New York City Commission on Human Rights. William joined Gennet, Kallmann, Antin, Sweetman and Nichols in 1991 and is a litigator with considerable subrogation and liability defense trial experience in the state and federal courts of New Jersey and New York.

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Alan L. Korzen

(Of Counsel)

Alan L. Korzen graduated from Pace University School of Law, after obtaining his B.A. from The George Washington University in 1986. After graduating law school, Mr. Korzen practiced in New York City for over twenty years at prominent insurance defense firms, practicing in the areas of premises liability, labor law and construction accidents, intentional torts, toxic torts, medical malpractice, automobile litigation, and subrogation and property damage matters.

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Michael Margello

(Of Counsel)

Michael Margello graduated from New York Law School in 1980 after obtaining a B.A. in history from Lafayette College. He went into private practice and immediately after law school became associated with various New York firms gaining experience in construction law, real estate and trusts and estates before his affiliation with GKASN, which began in 1991.

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Matthew C. Simon

(Of Counsel)

Matthew C. Simon graduated from Hofstra School of Law, after obtaining his B.S. from St. John’s University. After graduation, he served as Associate Attorney at The Law Office Of John Tierney  and Counsel to the Firm from 2013-2018. Matthew joined Gennet, Kallmann, Antin, Sweetman and Nichols representing insured entities in defending against various negligence claims seeking compensation for personal injury.

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