LAWYER PROFILE
Susan B. Cassidy

Susan B. Cassidy

USA 2026

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Ranked in 2 practice areas

About

Provided by Covington & Burling LLP

USA

Practice Areas

Susan Cassidy advises clients on the complex rules and regulations imposed on government contractors, with a special emphasis on the defense and intelligence sectors. She combines a sophisticated knowledge of the FAR and DFARS with the practical insight gained from senior in-house positions at both dedicated defense and commercial item contractors.

Ms. Cassidy has particular expertise in the complex regulatory intersection of cybersecurity and government contracts and regularly advises clients on the unique risks associated with a cyber incident involving sensitive government information. Ms. Cassidy also has an active practice counseling clients on a wide variety of supply chain issues, including Section 889, government sourcing restrictions, the Supply Chain Executive Order, counterfeit parts requirements, product exclusions, and DoD’s Cybersecurity Maturity Model Certification (CMMC).

Ms. Cassidy has considerable litigation experience and has represented clients in bid protests, prime-subcontractor disputes, APA cases, and product liability litigation before federal courts, state courts, and administrative agencies.

Career

Prior to joining Covington, Ms. Cassidy served in a number of senior in-house counsel roles for commercial item and major defense contractors. Before moving in-house, Ms. Cassidy was a litigation and government contracts partner at a large international law firm in DC.

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Government Contracts: Cybersecurity - USA - Nationwide

Band 1
Band 1

Individual Editorial

Susan Cassidy regularly handles both contentious and non-contentious government contract matters, including investigations and regulatory concerns. She is renowned for her experience in advising on supply chain security and cybersecurity issues.

Government Contracts - USA - Nationwide

Band 2
Band 2

Individual Editorial

Susan Cassidy regularly handles both contentious and non-contentious government contract matters, including investigations and regulatory concerns. She is renowned for her experience in advising on supply chain security and cybersecurity issues.

Strengths

Provided by Chambers

  • Susan is extremely practical and quickly provides concrete solutions to even the most complex of matters.

    Government Contracts: CybersecurityChambers Guide to the USA
  • Susan brings an immense amount of practical knowledge to the advice she provides on government contracts.

    Government Contracts: CybersecurityChambers Guide to the USA

Ranked Individuals at Covington & Burling LLP (227)

California

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