Margaret Warner > 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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Margaret Warner
Work Department
Litigation & Dispute Resolution
Position
Margaret Warner has served as first chair trial and appellate counsel in state and federal courts in over 30 jurisdictions. Her work has spanned antitrust, commercial, class action, environmental, healthcare, insurance, mass tort, product liability and reinsurance disputes. Margaret has taken numerous cases to verdict/judgment before juries, judges and arbitration tribunals. Many of her cases have involved high-profile public policy issues from the Agent Orange litigation in the 1980s, environmental and Superfund litigation involving such notorious sites as Love Canal and the Hudson River in the 1990s, to sexual abuse, 9/11, antitrust, healthcare, ERISA and COVID-19 litigation in the 21st Century.
Please visit McDermott website for full biography: https://www.mwe.com/people/warner-margaret-h/
Lawyer Rankings
United States > Insurance > Advice to insurers
(Hall of Fame)With a consistent record of advising and representing clients in complex insurance matters, McDermott Will & Emery LLP demonstrates strength in handling diverse insurance and reinsurance disputes. These include cases related to bankruptcy appellate, insurance coverage, and inter-insurer contributions across various sectors such as sexual abuse claims, clergy abuse cases, precision manufacturing, and professional sports leagues. The practice, with the ability to handle both trial and appeal proceedings, securing first-chair trial and appellate victories for top names in the insurance sector, provides comprehensive expertise to industry stakeholders, emphasizing notable strength in healthcare sector. Serving as trusted advisors to significant clients like Allianz, Enstart, Marsh, and Nationwide, practice head Margaret Warner, based in Washington, brings deep experience to the table. Working alongside her in Washington, Ryan Smethurst, a litigation specialist, supports the practice across a broad spectrum of insurance litigation, from regulatory issues to high-profile class actions and ERISA disputes.
Lawyer Rankings
- Hall of Fame United States > Insurance > Advice to insurers
- Advice to insurers United States > Insurance
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