Dennis O'Brien    

DENNIS O’BRIEN began his career as an Assistant District Attorney with the Nassau County District Attorney’s Office. Serving as a prosecutor from 2002 until 2006, Mr. O’Brien handled a wide array of criminal matters including the most serious violent felonies. Upon leaving the District Attorney’s Office, Mr. O’Brien managed a criminal defense firm in Garden City and Huntington for fourteen years. During that time, he amassed significant litigation experience including grand jury, litigated motions, pre-trial hearings, and trying cases to verdict. His litigation practice also included varied administrative proceedings such as refusal and fatality hearings and the corresponding departmental appeals procedures, firearms licensing, and New York Police Department administrative reviews.

In 2016 Mr. O’Brien was recognized by the members of the Fraternal Order of Court Officers (FOCO), which is an organization of New York State Court Officers and Court Clerks, with the Amicus Fraternitas Award, given to a member of the legal community based on professionalism, dedication and integrity.

He was elected and served as a member of the Board of Directors of the Criminal Courts Bar Association of Nassau County from 2008-2016. During his time on the Board of Directors, Mr. O’Brien chaired the Legal Action Committee, where he authored several Amicus Curiae briefs on behalf of the Association. In 2015, he was elected President of the organization and dutifully served in this office, frequently participating in meetings with senior representatives of the Office of the District Attorney and the Supervising and Administrative Judges of the Courts of Nassau County. In addition to his service with the Criminal Courts Bar Association, he has also served as Vice Chair and Chair of the Criminal Courts Law and Procedure Committee of the Nassau County Bar Association.

Mr. O’Brien is an Adjunct Professor at St. John’s University and has been teaching courses on the law for the past eighteen years. He also continues to present his academic writing at colloquia and conferences throughout the country.

Mr. O’Brien received his J.D. from Brooklyn Law School, M.A. from St. John’s University, and B.A. from St. John’s University. He is also a graduate of Chaminade High School. Mr. O’Brien is a member of the Nassau, Suffolk and New York State Bar Associations, the Criminal Courts Bar Association of Nassau County, and the National Association of Criminal Defense Lawyers, and is admitted to practice law in New York State and the Eastern and Southern Districts of New York.

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Events Calendar
  • UPCOMING EVENTS
  • Friday, April 8, 2022
    10:00 a.m. – 3:30 p.m.
    2022 Annual School Law Conference
    Sponsored by the Education Law Committees of Suffolk and Nassau County Bar Associations
    As well as the Suffolk & Nassau Academies of Law


    Speakers:
    Jacob S. Feldman, Esq., Frazer & Feldman, LLP
    Christie Jacobson, Esq., Frazer & Feldman, LLP
    Joseph Lilly, Esq., Frazer & Feldman, LLP
    Dennis O’Brien, Esq., Frazer & Feldman, LLP

    Topics will include: “Deal or No Deal” - Disciplinary Proceedings in Cyberspace; Special Education “Jeopardy!” – Navigating the Perils of Spe-cial Education Ethics One Question at Time; and “Let’s Make a Deal” – Negotiating in the Post Pandemic.




  • RECENT EVENTS
  • March 30, 2022
    Freedom of Information Law (“FOIL”) Training Seminar


    Christie R. Jacobson held a client training seminar on the New York State Freedom of Information Law (“FOIL”) for all school board members, Superintendents of Schools, interested school administrators, Records Access Officers, FOIL Appeals Officers, and district clerks. For more information, please go to the Client Memoranda tab of our website for a recording of the seminar.



  • February 11, 2022
    On-Line Seminar
    9:00 a.m. to 4:30 p.m.
    IEP and 504 Plan Legal Workshop


    Jack Feldman will be presenting a seminar on the IEP Development Process: Handling Difficult Issues and Key Considerations for Implementing IEPs. The seminar will address IDEA evaluation report essentials; IEP Meetings; creating measurable IEP goals and progress requirements; who should receive a copy of IEPs and what form should it be; and what to do when IEPs aren’t working. For additional information, please visit www.nbi-sems.com.



  • Wednesday, February 16, 2022
    Webinar: Social Media Ethics for School Attorneys
    When lawyers use social media, what ethical rules apply? And how?

    Time: Noon to 1:00 p.m.
    Price: $110 per person


    Christie R. Jacobson will co-present a seminar on the topic of school attorneys and their law firms are using social media platforms such as LinkedIn, YouTube, and Twitter to connect with both current and prospective clients. However, as with all other forms of attorney advertising, they must remain mindful of potentially serious ethical implications. For example, Rule 7.1 of the New York Rules of Professional Conduct governs attorney and law firm advertisements, including content published on the Internet and via social media. This webinar will review the rules governing social media ethics and their application to attorneys who practice education law. For more information and to register, please visit https://www.nysasa.org.



  • December 9, 2021
    On-Line Seminar
    9:00 a.m. to 4:30 p.m.
    New York Special Education Law


    Jack Feldman will be presenting a seminar on Special Education Law in New York. The seminar will address the increasing number of students qualifying for special education services. Professionals working with special needs children know that an understanding of special education law is crucial. You need to know the law in order to deal with complex questions that arise on a regular basis. Who pays when a special needs child is placed in private schooling at the parents' election? How can a school create the least restrictive environment and promote inclusion to the best interests of all students? It can be costly if you don't know. For additional information, please visit www.nbi-sems.com.





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