Ms Andrew Lyonsberg > McDermott Will & Emery LLP > Washington DC, United States > Lawyer Profile
McDermott Will & Emery LLP Offices
THE MCDERMOTT BUILDING, 500 NORTH CAPITOL STREET, NW
WASHINGTON, DC 20001-1531
DISTRICT OF COLUMBIA
United States
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Ms Andrew Lyonsberg
Work Department
Trial
Position
Andrew Lyonsberg focuses his practice on litigation in the Supreme Court and appellate courts across the country, as well as major motions at the trial-court level. He has briefed more than fifty appellate matters and dispositive motions, and has argued before the US Courts of Appeals for the Fifth, Sixth, and Seventh Circuits. Andrew also has extensive experience with agency litigation under the Administrative Procedure Act, including several recent victories setting aside federal agency action.
Andrew has been recognized in Best Lawyers: Ones to Watch (2023) for appellate practice, and was named a Rising Star in Supreme Court and appellate litigation by The Legal 500 (2022). He was also featured in the 2021 edition of The Legal 500, with clients praising his “big-picture thinking” and “sophisticated view on how the executive branch operates.”
Andrew served as a law clerk to the Honorable Kim McLane Wardlaw on the US Court of Appeals for the Ninth Circuit. While in law school, he was a forum editor of the Yale Law Journal.
Lawyer Rankings
United States > Dispute resolution > Appellate: courts of appeals / Appellate: supreme courts (states and federal)
The growing appellate practice at McDermott Will & Emery LLP added seven new clients to its roster over the past year, including Astellas Pharmaceuticals, and the Electric Power Supply Association. The Washington DC-based group’s increasing activity was reflected by its recent promotion of appellate-focused lawyers Andrew Lyonsberg and Sarah Hogarth to the partnership. Among its recent key cases, the team has represented an array of multinational corporations, trade associations and financial institutions on appeals involving constitutional law, business disputes and immigration law, among other matters. Paul Hughes, who has argued before the Supreme Court nine times, co-heads the practice together with increasingly prominent next-generation partner Michael Kimberly.
Lawyer Rankings
Top Tier Firm Rankings
- Media, technology and telecoms > Technology transactions
- Healthcare > Health insurers
- Healthcare > Life sciences
- Media, technology and telecoms > Outsourcing
- Healthcare > Service providers
- Tax > US taxes: contentious
- Tax > US taxes: non-contentious
Firm Rankings
- Insurance > Advice to insurers
- Labor and employment > Employee benefits, executive compensation and retirement plans: design
- Labor and employment > Employee benefits, executive compensation and retirement plans: transactional
- Energy > Energy regulation: electric power
- Tax > Financial products
- Labor and employment > Immigration
- Tax > International tax
- M&A/corporate and commercial > M&A: middle-market ($500m-999m)
- Dispute resolution > Product liability, mass tort and class action - defense: toxic tort
- Energy > Renewable/alternative power
- Intellectual property > Trademarks: non-contentious (including prosecution, portfolio management and licensing)
- Media, technology and telecoms > Cyber law (including data privacy and data protection)
- Labor and employment > ERISA litigation
- Dispute resolution > General commercial disputes
- Insurance > Insurance: non-contentious
- Labor and employment > Labor-management relations
- Antitrust > Merger control
- Intellectual property > Patents: prosecution (including re-examination and post-grant proceedings)
- Real estate > Real estate finance
- International Trade > Trade remedies and trade policy
- Labor and employment > Workplace and employment counseling
- Finance > Capital markets: equity offerings
- Antitrust > Cartel
- Antitrust > Civil litigation/class actions: defense
- Energy > Energy transactions: electric power
- Energy > Energy transactions: oil and gas
- Labor and employment > Labor and employment disputes (including collective actions)
- Intellectual property > Patents: litigation (full coverage)
- Dispute resolution > Securities litigation: defense
- Finance > Structured finance: derivatives and structured products
- Dispute resolution > Corporate investigations and white-collar criminal defense
- M&A/corporate and commercial > Private equity buyouts: large deals ($500m+)
- Real estate > Real estate
- Finance > Restructuring (including bankruptcy): corporate
- Investment fund formation and management > Private equity funds (including venture capital)
- Dispute resolution > Appellate: courts of appeals / Appellate: supreme courts (states and federal)
- Finance > Commercial lending
- Finance > Fintech
- Investment fund formation and management > Alternative/hedge funds
- Government > Government contracts