(206) 516-3837

Contracts & Commercial Disputes

Intellectual Property Protection & Litigation
Corporate Governance & Dissolution Disputes

Consumer & Tort Litigation
White Collar Defense & Government Investigations

Appellate Litigation


George Washington University Law School, J.D., 1987

St. Lawrence University, B.A., 1984, with honors


Garvey Schubert & Barer, 1998-2001

Boraks & Jamnback, 1991-1998

Assistant Public Defender, Commonwealth of Virginia, 1990-1994

John Jamnback is an experienced trial attorney who has represented clients in a variety of civil and criminal cases in state and federal courts and arbitration forums around the country. He has tried more than 100 cases to verdict including commercial contract disputes, broker-dealer regulation and other areas of securities-related litigation, intellectual property cases, employment matters, construction litigation, product liability, personal injury and professional negligence cases. A substantial part of John’s practice involves counselling, negotiating and litigating on behalf of clients in inter-company disputes and corporate and LLC dissolutions. John also has extensive experience defending individual and corporate clients facing potential criminal charges and prosecutions.


John is part of the firm’s Intellectual Property Protection and Litigation practice, with a focus on anti-piracy – seeking to protect clients’ intellectual property and technologies from illegal infringement.


John has also been active in appellate work, having briefed and argued appeals to the United States Court of Appeals for the Fourth Circuit, the Ninth Circuit and the D.C. Circuit, the Washington Court of Appeals and Washington Supreme Court, the Virginia Court of Appeals, and the Virginia Supreme Court. In addition, he has appeared on brief in the D.C. Court of Appeals, the Maryland Court of Special Appeals, and the Maryland Court of Appeals.

John’s clients and matters have included:

  • DIRECTV, Inc., in numerous anti-piracy cases.

  • Microsoft Corporation in numerous copyright infringement cases.

  • NDS Americas, Inc. in anti-piracy cases and other civil litigation.

  • Pierce County real estate LLC dissolution litigation.

  • Kittitas County cannabis business LLC dissolution litigation.

  • King County technology company LLC/corporate dissolution litigation.

  • Seattle-based health care company in an architectural malpractice arbitration involving the renovation and remodel of a large hospital.

  • Architectural malpractice claim on behalf of a homeowner involving a high end residential property.

  • Boeing Corporation in an export control matter.

  • Smith Barney in NASD securities arbitrations and federal court litigation.

  • Prudential Securities in numerous NYSE and NASD securities arbitrations.

  • Security Chief of the Washington, D.C. Lottery in his wrongful termination suit.

  • Washington, D.C. police captain in wrongful termination matter.

  • New Jersey based manufacturing company accused of mail fraud, wire fraud, price fixing and criminal RICO violations.

  • Accounting firm charged with bank fraud and tax fraud.

  • United States Department of State employee charged with embezzlement.

  • United States Department of Labor attorney charged with criminal fraud.

  • National fast food chain in defending an employment class action.

  • Automobile advertising product distributor in a commercial dispute.

  • City contractor shot by a Seattle city employee.

  • Severely injured child in a medical malpractice case against the United States Air Force.