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  • J.D., George Washington University Law School, 2008
  • B.A., Colgate University, with High Honors, summa cum laude, Phi Beta Kappa, 2005

Bar Admissions

  • Massachusetts

Court Admissions

  • U.S. Court of Federal Claims
  • U.S. District Court, District of Massachusetts
  • U.S. Court of Appeals, District of Columbia Circuit

Memberships & Affiliations

American Bar Association, Section of Public Contract Law

National Contract Management Association (NCMA) Co-Vice President of Education, 2012-2014 and Co-Chair of the Annual March Workshop, 2012-2014

International Trademark Association (INTA)

Bonnie A. Vanzler

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  • T: 617.449.6501
    F: 617.326.3023

Ms. Vanzler is an associate in the Government Contracts and Intellectual Property/Information Technology practice groups resident in the Boston Office.

As a part of her Government Contracts practice, Ms. Vanzler provides clients guidance for complying with federal, state, and local public procurement requirements. She frequently represents clients in bid protest litigation before federal agencies and the U.S. Government Accountability Office. In addition, Bonnie routinely litigates contract disputes in the U.S. Court of Federal Claims and the Boards of Contract Appeals.

Ms. Vanzler has experience counseling companies on General Services Administration Schedules, Small Business Administration contracting programs, Buy American and Trade Agreements Act requirements, business ethics compliance, export control regulations, protecting intellectual property and data rights, commercial item contracting, and negotiating contract terms and conditions.

In addition to her government contracts work, Bonnie counsels clients on trademark selection and trade dress clearance and participates in trademark prosecution proceedings before the U.S. Patent and Trademark Office. She is experienced in representing clients in trademark and patent infringement and false advertising litigation in federal district courts and the U.S. Courts of Appeals.

Ms. Vanzler is an active member of the Boston Chapter of the National Contract Management Association (NCMA) and currently serves on the Executive Committee as the Co-Vice President of Education. She has presented on bid protest and other government contracting topics at Chapter events and authors the “Legal Corner” of the Chapter’s quarterly newsletter. In 2012, Bonnie is recognized as “Member of the Year” of the Boston Chapter of NCMA in recognition of her role as Co-Chair of the Chapter’s annual March Workshop.

Ms. Vanzler graduated summa cum laude from Colgate University, where she was a member of Phi Beta Kappa. She received her law degree from The George Washington University Law School, where she was the Executive Articles Editor on the American Intellectual Property Law Association (AIPLA) Quarterly Journal and President of The George Washington University Law School Environmental Law Association. During law school, Bonnie was also a finalist and awarded Best Brief in the Van Vleck Constitutional Law Moot Court Competition presided over by Judge Stephen R. Reinhardt (U.S. Court of Appeals for the Ninth Circuit), Judge Janice Rogers Brown (U.S. Court of Appeals for the D.C. Circuit), and Judge Randall R. Rader (U.S. Court of Appeals for the Federal Circuit).

Representative Matters

Government Contractor Suspension Lifted – Agiltron, Inc.
McCarter & English successfully represented Agiltron, Inc., Nanotrons Corp., and Agiltron Development Corp. in their negotiations with the Department of the Air Force Suspension and Debarment Official of an Administrative Agreement providing for the July 26, 2013 termination of their suspension from federal government contracting.


National Contract Management Association (NCMA) Boston Chapter’s Third Annual Women’s Leadership Forum
National Contract Management Association Boston Chapter’s 54th Annual Workshop
Bid Protest Decisions from 2010
National Contract Management Association Boston Chapter's 50th Annual Workshop