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About Me

Mr. O’Brien is an experienced trial attorney with numerous successful jury verdicts throughout the New York State Supreme Courts and New York City Civil Courts. He has successfully represented institutional and individual clients in complex civil litigation in a broad range of substantive areas, including general negligence, medical malpractice, wrongful death, toxic torts, real estate, constitutional law, trademark and copyright infringement, securities fraud, and business disputes. In addition to trial work, Mr. O’Brien’s courtroom experience also includes successful appeals in state appellate courts.

Prior to founding O’Brien Law Firm, PLLC, Mr. O’Brien was in-house counsel for Nationwide Mutual Insurance Company in their New York City office, and before that he was an associate attorney with McCarthy, Small & Associates, P.C., also in New York, NY. During law school, Mr. O’Brien worked for a sole practitioner in Boston, MA, where he gained invaluable experience not only in substantive areas of law, but also with the day-to-day management of a law practice.


Practice Areas


  1. Litigation: 50%
    12 years
  2. Personal Injury: 30%
    6 years
  3. Election Campaigns & Political Law: 10%
    5 years
  4. Estate Planning: 5%
    6 years
  5. Business: 5%
    6 years



Hourly ($275-350/hour), Contingent (33%), Fixed (Sometimes), Retainer (Sometimes)

Payment Types:

Cash, Check, Credit Card

Attorney Endorsements

3 total 

  • Nance L Schick

    I have known Michael since he was a legal intern in the law firm where I worked immediately after obtaining my law license. I saw him grow into his own licensure, then into an exceptional trial attorney. When we worked together at that law firm, I always knew I could entrust him with any assignment, whether it was in court, before the Workers' Compensation Board or a communication to a client. I have known him to be nothing but thorough, professional and effective. I recommended him for the position he took at Nationwide Mutual Insurance Co.'s in-house negligence defense firm, and I have continued to recommend him now that he is in his own practice. There are few attorneys I can rely on as much as I can rely on Michael O'Brien. I am grateful for the ongoing opportunity to work, collaborate and "mastermind" with him.


    Nance Schick Workers Compensation Attorney
    Relationship: Worked together on matter

  • Suzanne Alexandra Ascher

    I endorse Michael Paul O'Brien, Esq. He has many years of litigation experience and is highly qualified to handle various matters in court -- ranging from business matters to landlord tenant matters. He has an excellent background in trial practice. Therefore, I give him this peer endorsement as a fellow colleague.


    Suzanne Ascher Tax Attorney
    Relationship: Fellow lawyer in community

Contact Info

O'Brien Law Firm, PLLC

30 Wall Street, 8th Floor
New York, NY, 10005


NYCurrently registered 200303/13/2015

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.
Avvo Contributions
Legal Answers
Award NameGrantorDate Granted
District Representative of the YearTorts, Insurance and Compensation Law Section2014
Hurwitz Award (outstanding contribution to the practice of law)Torts, Insurance and Compensation Law Section of the New York State Bar Association2011
Work Experience
TitleCompany NameDuration
Partner/MemberO'Brien Law Firm, PLLC2010 - Present
Trial AttorneyNationwide Mutual Ins. Co.2003 - 2010
AssociateMcCarthy, Small & Associates, P.C.2002 - 2003
Legal InternBrendan J. Shea, Esq.2000 - 2001
InternState of Rhode Island Senate1998 - 1998
Association NamePosition NameDuration
Staten Island Economic Development CorporationLeadership Institute2013 - 2014
National Association of Subrogation ProfessionalsMember2008 - 2013
New York State Bar Association, Torts, Insurance and Compensation Law Section13th District Representative2003 - Present
Legal Cases
Case NameOutcome
Pena v. SpiegelPlaintiff's verdict following trial in Supreme NY
Lincoln General Ins. Co. v. Nationwide Mutual Ins. Co., et. al.N/A
Bodrate v. City of New YorkDefendant England's summary judgment motion grante
See all Legal Cases 
Publication NameTitleDate
Young Lawyers Section Trial Academy ProgramTrial Motions and Motions in Limine from the Civil Perspective2011
Torts, Insurance and Compensation Law Section Fall Meeting ProgramNegotiations 101 - What Every Litigator Should Know2010
School NameMajorDegreeGraduated
National Institute for Trial Advocacy (NITA)Trial PracticeCertificate2004
Suffolk University Law SchoolN/AJuris Doctor2002
Providence CollegePolitical ScienceBachelor of Arts1999
Speaking Engagements
Conference NameTitleDate
Young Lawyers Section Trial AcademyTrial Motions and Motions in Limine2014
NYSBA Annual MeetingNYSBA CLE Co-Chair2014
Young Lawyers Section Trial AcademyTrial Motions and Motions in Limine from the Civil Perspective2013
Young Lawyers Section Trial AcademyTrial Motions and Motions in Limine from the Civil Perspective2012
Law School for the Insurance ProfessionalAccident Scene Investigation2012
Young Lawyers Section Trial AcademyTrial Motions - Civil Perspective2011
New York State Bar Association Summer ReceptionSummer Meeting / Benefits of Membership2011
Torts Insurance and Compensation Law Section Fall MeetingNegotiations 101: What Every Litigator Should Know2010
Richmond County Torts, Insurance and Compesnation Law Section ReceptionHon. Judith McMahon Reception2009
Commercial Claims PresentationNew York City Sidewalk Law2009