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)
Over the past year, McDermott Will & Emery LLP’s national appellate practice has had strong showings before the DC and Fourth Circuits, and also scored a win at the US Supreme Court. Department co-chair Paul Hughes secured the SCOTUS victory when he successfully represented an individual in seeking relief from deportation on account of her gender identity—he has now argued ten times before SCOTUS. Increasingly prominent appellate specialist Michael Kimberly co-chairs the group and has clocked up eight arguments before the US Supreme Court; he has carved a significant niche in advising on issues concerning the Medicare Act, among other matters. The Washington DC-based group also includes younger partners Andrew Lyonsberg and Sarah Hogarth, who provide specialist support on appellate matters.
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
- 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)
- Labor and employment > Workplace and employment counseling
- Insurance > Advice to insurers
- 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 and employment disputes (including collective actions)
- Labor and employment > Labor-management relations
- Intellectual property > Patents: prosecution (including re-examination and post-grant proceedings)
- Real estate > Real estate finance
- Finance > Capital markets: equity offerings
- Antitrust > Cartel
- Antitrust > Civil litigation/class actions: defense
- Energy > Energy transactions: electric power
- Energy > Energy transactions: oil and gas
- Government > Government contracts
- Antitrust > Merger control
- Intellectual property > Patents: litigation (full coverage)
- Finance > Restructuring (including bankruptcy): corporate
- Dispute resolution > Securities litigation: defense
- Finance > Structured finance: derivatives and structured products
- International trade > Trade remedies and trade policy
- Dispute resolution > Corporate investigations and white-collar criminal defense
- Dispute resolution > International arbitration
- M&A/corporate and commercial > Private equity buyouts: large deals ($500m+)
- Investment fund formation and management > Private equity funds (including venture capital)
- Real estate > Real estate
- Dispute resolution > Appellate: courts of appeals / Appellate: supreme courts (states and federal)
- Finance > Commercial lending
- Finance > Fintech