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Dan O'Neil

Boston, MA

Practicing employment in Boston since 2011.

15+
Years practicing
1
Bar admission

Practices in

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Quick answer

Dan O'Neil is an attorney based in Boston, MASSACHUSETTS. The practice focuses on Employment and M&A. Dan has over 15 years of legal experience.

Based in
Boston, MASSACHUSETTS
Experience
over 15 years
Known for
Employment · M&A
  • Handles Employment and M&A matters from Boston, MASSACHUSETTS.
  • Over 15 years of practice as a licensed attorney.
  • Recognized with Best Lawyers in America — Employee Benefits (ERISA) Law (2026).

About Dan O'Neil: Dan O'Neil is an attorney based in Boston, MASSACHUSETTS. The practice focuses on Employment and M&A. Dan has over 15 years of legal experience.

Areas of practice

Practice focus

Dan O'Neil represents clients in Boston, Massachusetts across the following areas of law. Each area links to other verified attorneys with the same focus.

Biography

About Dan O'Neil

Dan O’Neil focuses his practice on employee benefits and executive compensation matters with an emphasis on corporate transactions. Dan has experience with employee benefit and executive compensation due diligence, negotiation of the related provisions in transaction agreements and assists clients with issues relating to sections 280G, 162(m) and 409A of the Code. Dan is also experienced in a wide range of tax and benefits issues, including day-to-day retirement plan compliance, ERISA fiduciary matters, prohibited transactions and plan design. His writing has been featured in Benefits Quarterly.

Read full biography: https://www.mwe.com/people/dan-oneil/

Jurisdictions

Bar admissions

  • Massachusetts, Massa

    2011 · ACTIVE

Recognition

Awards & honors

  • Best Lawyers in America — Employee Benefits (ERISA) Law

    2026

  • Best Lawyers in America — Mergers and Acquisitions Law

    2026

  • Best Lawyers in America — Additional Areas of Practice:

    2026

  • Best Lawyers in America — Corporate Governance and Compliance Law

    2026

Locations

Office locations

Main office

200 Clarendon Street, 49th Floor

Boston, Massachusetts 02116

Open in Google Maps

Client feedback

Client reviews

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Frequently asked

Common questions

  • What areas of law does Dan O'Neil practice?

    Dan O'Neil focuses on Employment and M&A.

  • Where is Dan O'Neil located?

    Dan O'Neil primarily serves clients in Boston, Massachusetts, with an office at 200 Clarendon Street, 49th Floor.

  • How experienced is Dan O'Neil?

    Dan O'Neil has 15 years of legal practice, having been licensed since 2011.

  • Is Dan O'Neil a verified attorney?

    Dan O'Neil's profile is listed but has not yet been claimed by the attorney. Verification status is pending.

  • How can I schedule a consultation with Dan O'Neil?

    You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 617-912-1800.