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Michael O'Sullivan III

New Haven, CT

Practicing business in New Haven since 2022.

4+
Years practicing
9
Bar admissions

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Quick answer

Michael O'Sullivan III is an attorney based in New Haven, CONNECTICUT. The practice focuses on Business, Employment, and Litigation. Michael has 4 years of legal experience.

Based in
New Haven, CONNECTICUT
Experience
4 years
Known for
Business · Employment · Litigation
  • Handles Business, Employment, and Litigation matters from New Haven, CONNECTICUT.
  • 4 years of practice as a licensed attorney.
  • Recognized with Best Lawyers in America — Business Organizations (including LLCs and Partnerships) (2026).

About Michael O'Sullivan III: Michael O'Sullivan III is an attorney based in New Haven, CONNECTICUT. The practice focuses on Business, Employment, and Litigation. Michael has 4 years of legal experience.

Areas of practice

Practice focus

Michael O'Sullivan III represents clients in New Haven, Connecticut across the following areas of law. Each area links to other verified attorneys with the same focus.

Biography

About Michael O'Sullivan III

Michael J. O’Sullivan, III represents clients in the areas of commercial litigation, corporate and business transactions, and real estate law.

He was inspired to pursue law from a young age based on his relationship with his grandfather, who served as an Assistant Attorney General for the State of Connecticut for more than 35 years and was a proud alumnus of Le Moyne College.

Michael attended Le Moyne College in Syracuse, New York, majoring in political science and theatre. During college, Michael interned with the Connecticut State Senate Office and worked in a business law firm in East Haven, Connecticut. His diverse background in politics, law, and storytelling informed his decision to attend law school.

Michael attended Quinnipiac University School of Law where he obtained his Juris Doctorate, magna cum laude. There, he was an active member of the mock trial society and society for dispute resolution, competing in several mock trials, arbitrations, and mediations. He was further recognized for Academic Excellence in Business Transaction Clinic, Distinguished Academic Excellence in Administration Law and excellence in his trial law and advocacy courses.

Since joining Neubert, Pepe & Monteith, P.C., Michael appreciates the firm’s collegial, collaborative, and pragmatic approach to protecting client interests and solving legal issues in a flexible and efficient manner. Michael’s conscientious and unrelenting determination to serve a client’s interests make him a good fit at a firm that prioritizes the same values.

Outside of work, Michael is an avid Boston sports fan, and enjoys reading, golfing, and spending time with his family. While in college, Michael’s passion for acting and film earned him a role as a background actor in Martin Scorsese’s The Irishman, which he considers one of the most formative experiences of his life.

Credentials

Education

  • Quinnipiac University

    J.D. · 2022

  • Quinnipiac University

    J.D. · 2022

  • Quinnipiac University

    J.D. · 2022

  • Quinnipiac University

    J.D. · 2022

  • Quinnipiac University

    J.D. · 2022

  • Quinnipiac University

    J.D. · 2022

  • Quinnipiac University

    J.D. · 2022

  • Quinnipiac University

    J.D. · 2022

  • Quinnipiac University

    J.D. · 2022

Jurisdictions

Bar admissions

  • Connecticut, Connect

    2022 · ACTIVE

  • Connecticut, Connect

    2022 · ACTIVE

  • Connecticut, Connect

    2022 · ACTIVE

  • Connecticut, Connect

    2022 · ACTIVE

  • Connecticut, Connect

    2022 · ACTIVE

  • Connecticut, Connect

    2022 · ACTIVE

  • Connecticut, Connect

    2022 · ACTIVE

  • Connecticut, Connect

    2022 · ACTIVE

  • Connecticut, Connect

    2022 · ACTIVE

Recognition

Awards & honors

  • Best Lawyers in America — Business Organizations (including LLCs and Partnerships)

    2026

  • Best Lawyers in America — Commercial Litigation

    2026

  • Best Lawyers in America — Litigation - Labor and Employment

    2026

Locations

Office locations

Main office

195 Church Street, 13th Floor

New Haven, Connecticut 06510

Open in Google Maps

Client feedback

Client reviews

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Frequently asked

Common questions

  • What areas of law does Michael O'Sullivan III practice?

    Michael O'Sullivan III focuses on Business, Employment, and Litigation.

  • Where is Michael O'Sullivan III located?

    Michael O'Sullivan III primarily serves clients in New Haven, Connecticut, with an office at 195 Church Street, 13th Floor.

  • How experienced is Michael O'Sullivan III?

    Michael O'Sullivan III has 4 years of legal practice, having been licensed since 2022.

  • Is Michael O'Sullivan III a verified attorney?

    Michael O'Sullivan III's profile is listed but has not yet been claimed by the attorney. Verification status is pending.

  • How can I schedule a consultation with Michael O'Sullivan III?

    You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 203-821-2000.