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John Parker Sweeney

Washington, DC

Trusted class action attorney serving Washington.

3
Bar admissions

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John Parker Sweeney is an attorney based in Washington, DISTRICT OF COLUMBIA. The practice focuses on Class Action and Product Liability.

Based in
Washington, DISTRICT OF COLUMBIA
Experience
attorney
Known for
Class Action · Product Liability
  • Handles Class Action and Product Liability matters from Washington, DISTRICT OF COLUMBIA.
  • Recognized with Lawyer of the Year — Mass Tort Litigation / Class Actions - Defendants, Washington (D.C.) (2021).

About John Parker Sweeney: John Parker Sweeney is an attorney based in Washington, DISTRICT OF COLUMBIA. The practice focuses on Class Action and Product Liability.

Areas of practice

Practice focus

John Parker Sweeney represents clients in Washington, District of Columbia across the following areas of law. Each area links to other verified attorneys with the same focus.

Biography

About John Parker Sweeney

John Parker Sweeney has more than 30 years of experience defending major class action and mass torts involving product liability and warranty, consumer protection, environmental, and toxic tort cases, allowing him to tailor an appropriate litigation response for any company to resolve "bet-the-company" risks. He regularly serves as national litigation counsel, creating and supervising comprehensive defense strategies in class action and mass tort cases across the country, most recently sweeping the board clean of a series of warranty class actions against an international construction product manufacturer.

John’s effectiveness and national prominence as a defense lawyer for business in class action and mass torts was recognized by his peers when he was elected as 2014-2015 president of DRI—The Voice of the Defense Bar, a 22,000-member association of defense lawyers.

John relies on his relationships with internationally renowned scientific, technical, and medical experts, as well as his thorough understanding of the rules and procedures governing expert testimony in both Daubert and Frye jurisdictions to protect his clients from scientifically unfounded claims and unqualified plaintiffs' experts. His success at securing precedent-setting decisions excluding junk science from the courtroom in "sick building" claims typifies his effectiveness.

Credentials

Education

  • American University Washington College of Law

    J.D. · 1975

  • Ohio Wesleyan University

    B.A. · 1972

Jurisdictions

Bar admissions

  • District of Columbia

    ACTIVE

  • New York, New York S

    ACTIVE

  • Maryland, Maryland S

    ACTIVE

Recognition

Awards & honors

  • Lawyer of the Year — Mass Tort Litigation / Class Actions - Defendants, Washington (D.C.)

    2021

  • Best Lawyers in America — Mass Tort Litigation / Class Actions - Defendants

    2026

  • Best Lawyers in America — Product Liability Litigation - Defendants

    2026

  • Best Lawyers in America — Additional Areas of Practice:

    2026

  • Best Lawyers in America — Civil Rights Law

    2026

  • Best Lawyers in America — Mass Tort Litigation

    2026

  • Best Lawyers in America — Product Liability Litigation

    2026

Locations

Office locations

Main office

1900 K Street, NW

Washington, District of Columbia 20006

Open in Google Maps

Client feedback

Client reviews

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Frequently asked

Common questions

  • What areas of law does John Parker Sweeney practice?

    John Parker Sweeney focuses on Class Action and Product Liability.

  • Where is John Parker Sweeney located?

    John Parker Sweeney primarily serves clients in Washington, District of Columbia, with an office at 1900 K Street, NW.

  • Is John Parker Sweeney a verified attorney?

    John Parker Sweeney's profile is listed but has not yet been claimed by the attorney. Verification status is pending.

  • How can I schedule a consultation with John Parker Sweeney?

    You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 202-393-7150.