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Paul Callan
work: (212) 248-8800
Callan Koster Brady & Brennan LLP
One Whitehall Street
New York , NY , 10004 USA
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Practice Highlights



Paul Callan was awarded the Juris Doctor degree from Boston College Law School after obtaining a Bachelor of Arts degree, with honors, from Seton Hall University. While at Seton Hall, Mr. Callan represented the United States in international debate competition as one of two members of the United States Debate Team. He was selected in a national competition.  In that capacity he toured the United Kingdom debating at its’ most prestigious universities. He debated the leader of the British opposition party at the Oxford Union's famous Thursday Evening Debate, a forum where twelve British Prime Ministers have honed their debating skills.

Early Legal Career… District Attorney’s Office

Upon graduation from law school, Mr. Callan brought his legal and forensic skills to the Brooklyn District Attorney's Office, where he began his legal career as a prosecutor in one of the nation's largest prosecutorial agencies.  After working in a variety of bureaus including the Criminal Court, the Investigations Bureau, the Grand Jury, the Major Offense Bureau and the Supreme Court, he was promoted to the position of deputy chief of the Homicide Bureau. He was one of the youngest attorneys to be named to this position in the history of the Office.  His duties included trial work, administrative tasks and the supervision of all murder investigations and trials in Kings County. While there, he was one of the prosecutors on the case of People v. David Berkowitz, the infamous "Son of Sam" serial murder case. During his career as a prosecutor he was involved in hundreds of investigations and trials including complex economic crimes as well as cases of domestic violence, sex crimes, kidnapping, robbery, theft and murder.

Callan, Koster, Brady & Brennan…Litigation Experience

After leaving the District Attorney's Office Mr. Callan became one of the founding partners of Callan, Koster, Brady & Brennan, LLP.  Through the years he has established a national reputation as trial counsel in complex civil and criminal litigation. He has litigated cases in a wide variety of matters including professional liability, director's and officer's liability, medical malpractice, employment, civil rights, complex insurance, construction and real estate matters. He has also represented clients in class action litigation arising out of a variety of subject areas. He is skilled in both arbitration and mediation as a method of conflict resolution

Clients and High Profile Cases

His clients have included many of America’s largest insurance companies and corporations.  Some of New York's most famous physicians and surgeons have sought Mr. Callan's expertise when sued for medical malpractice. He represented the team doctor for one of the country's most famous professional sports teams when he was charged with operating on the patient’s wrong leg. His successful defense in a criminal case of a physician falsely accused of abusing a patient was the subject of an investigative report published on the editorial page of the Wall Street Journal. Author Dorothy Rabinowitz was awarded the Pulitzer Prize in part for her reporting on the case in her piece entitled "A Doctor's Story." He has litigated malpractice cases for clients involving neurosurgery, cardiology, orthopedics, radiology, anesthesiology, ophthalmology, psychiatry and other medical specialties.

Not surprisingly, a number of celebrities have turned to Mr. Callan for assistance when lawsuits have brought them into the courtroom. He successfully represented the Estate of Nicole Brown Simpson in the civil suit against O.J. Simpson in Santa Monica. At the conclusion of that case, the civil jury unlike the criminal jury, found Simpson liable for the murders of Nicole Brown Simpson and Ronald Goldman awarding a verdict in excess of $35,000,000.  Other well-known clients have included Leonardo DiCaprio, Quentin Tarantino, Ivana Trump, Michelle Rodriguez and Vadim Pearlman.

He has litigated a diverse array of fascinating cases including: the leading case in New York regarding its’  Rape Shield Law; a case involving the restoration and market value of the artist Mark Rothko's most famous painting; a case involving the first attempted commercial sale of  lunar material in the United States (the "Moon Rocks Case").  He is a skilled criminal defense lawyer handling cases of complexity in both state and federal matters.

Media Experience

Mr. Callan's litigation expertise has been recognized by CNN, NBC, ABC, CBS & Fox, where he has served as a legal analyst & contributor. His analysis is regularly quoted in the legal press. Through the years he has appeared on a variety of programs including The NBC Nightly News, The Today Show, The MacNeil/Lehrer News Hour, NPR’s All Things Considered, CNN’s New Day, Situation Room, & Newsroom, Anderson Cooper’s 360, Erin Burnett’s OutFront Jake Tapper’s The Lead, Ashleigh Banfield’s Legal View as well as Hannity & Colmes and The O’Reilly Factor. As the news industry changes digital media including The Daily Beast & The Huffington Post have also relied on his expertise. He has debated some of America's best-known lawyers including Alan Dershowitz and William Kunstler.

His relationship with the media and the press allows him to bring a special expertise to the table in high profile litigation. He is adept at keeping prominent clients out of the headlines and at shaping the message when publicity is unavoidable. He has worked cooperatively with some of the nation's most famous publicists and public relations firms in protecting the reputations of individuals and corporations dragged unfairly into public disputes.


He has served as an adjunct professor of media law at Seton Hall University. In this capacity he taught the laws of intellectual property, libel, slander, defamation and the First Amendment. He has litigated cases involving all of these issues in both state and federal court.

Professional Peer Ratings

The legal profession's most prestigious legal directory, Martindale-Hubbell has awarded Paul Callan its’ coveted "AV" rating, the highest such rating available to any individual lawyer. The rating is conferred as a result of an extensive and confidential peer review by members of the bar, familiar with Mr. Callan's work. Mr. Callan and Callan, Koster, & Brady, LLP have also been listed in The Bar Register of Preeminent Law Firms which Martindale describes as "The definitive guide to the most distinguished law firms in America."   Paul Callan has also been recognized as a "Super lawyer" in the legal directory published annually by the Super Lawyers a listing of top rated lawyers in America.

Bar Memberships and Publications

Mr. Callan's proficiency as a litigator and his reputation as an ethical advocate were recognized in his election to membership in the elite American Board of Trial Advocates. He has been or is currently a member of the Association of the Bar of the City of New York, the New York County Lawyers Association, the New Jersey Bar Association, the National Association of Criminal Defense Lawyers and the Society of Medical Jurisprudence. He has published and lectured widely for both industry and professional groups.
He is admitted to practice before the Courts of the State of New York, the State of New Jersey, the United States District Courts for the Southern and Eastern Districts of New York, the District of New Jersey and the Supreme Court of the United States. He has been admitted as trial counsel for individual matters in courts throughout the United States

Public Service

In addition to having served as an assistant district attorney, Paul Callan is also former councilman and deputy mayor of Ridgewood, New Jersey. He also served as a member of the Board of Trustees of the Ridgewood Library.

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