About
Sean A. McNicholas is a criminal defense attorney at the Law Office of Sean A. McNicholas, P.C. in Queens, New York. With decades of courtroom experience, he represents people facing misdemeanors, felonies, homicide, manslaughter, sex offenses, white-collar crimes, violent felonies, drug crimes, gun charges, theft offenses, and other serious allegations. McNicholas handles cases from arrest and arraignment through hearings, pretrial litigation, jury trials, sentencing, and appeals, developing strategies based on each client’s facts, evidence, and legal goals.
McNicholas earned a J.D. from St. John’s University School of Law. His legal education prepared him for legal analysis, research, courtroom advocacy, and the demands of criminal litigation. His career began with the Queens District Attorney’s Office, where he prosecuted criminal cases and learned how law enforcement investigations are conducted and how prosecutors evaluate evidence. That experience gave him direct knowledge of prosecution strategies, charging decisions, courtroom procedures, and the practical issues involved in preparing serious criminal cases.
McNicholas uses his former prosecutorial experience to examine criminal cases for weaknesses in the prosecution’s evidence, constitutional concerns, procedural errors, and opportunities for favorable resolutions. He regularly appears in Queens courts, works with local judges and assistant district attorneys, and understands how criminal matters progress through the local system. His courtroom familiarity helps him respond to developments, explain legal options clearly, negotiate when appropriate, and prepare to challenge the prosecution’s case through hearings or trial when necessary.
Sean A. McNicholas is admitted in New York, the United States District Court for the Southern District of New York, and the United States District Court for the Eastern District of New York. His professional associations include the Queens County Bar Association, New York State Bar Association, American Bar Association, and National Association of Criminal Defense Lawyers. His approach emphasizes straightforward advice, careful preparation, responsive communication, and dedicated advocacy for people facing criminal investigations, arrests, and serious charges.
Law Office Affiliations
- Attorney, The Law Office of Sean A. McNicholas, P.C.
- Member, New York State Bar Association
- Member, Queens County Bar Association
- Member, American Bar Association
- Member, National Association of Criminal Defense Lawyers
Licensed State
- New York
Education
- St. John’s University School of Law
Juris Doctor (J.D.)
Awards & Badges




- Assault & Battery
- Criminal Defense
- Domestic Violence
- Drug Crime
- DUI & DWI
- Homicide
- Juvenile
- Parole & Probation
- Sex Crimes
- Violent Crime
- White Collar Crime





