William P. O'Neill > Latham & Watkins LLP > Washington DC, United States > Lawyer Profile

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William P. O'Neill

+1.202.637.2275 william.o'neill@lw.com

Work Department

William O'Neill, partner in the Washington, D.C. office, has more than 34 years of experience representing public companies and their boards of directors in strategic and transformative transactions. From 2001-2007 he served as Chair of Latham & Watkins’ Corporate Practice in Washington, D.C., growing the department from fewer than 30 to more than 90 partners and associates.

Position

Partner

Career

https://www.lw.com/people/william-oneill

Top Tier Firm Rankings

• Insurance > Advice to policyholders
• Finance > Capital markets: debt offerings
• Finance > Capital markets: equity offerings
• Finance > Capital markets: global offerings
• Finance > Capital markets: high-yield debt offerings
• Antitrust > Cartel
• Antitrust > Civil litigation/class actions: defense
• Finance > Commercial lending
• Dispute resolution > Corporate investigations and white-collar criminal defense
• Dispute resolution > Corporate investigations and white-collar criminal defense
• Media, technology and telecoms > Cyber law (including data privacy and data protection)
• Labor and employment > Employee benefits, executive compensation and retirement plans: transactional
• Energy > Energy transactions: electric power
• Energy > Energy transactions: oil and gas
• Environment > Environment: litigation
• Environment > Environment: regulatory
• Environment > Environment: transactional
• Finance > Fintech
• Environment > Environment: transactional
• Real estate > Land use/zoning
• Environment > Environment: transactional
• Real estate > Land use/zoning
• Environment > Environment: transactional
• Environment > Environment: litigation
• Environment > Environment: regulatory
• Environment > Environment: transactional
• Real estate > Land use/zoning
• Healthcare > Life sciences
• Dispute resolution > M&A litigation: defense
• M&A/corporate and commercial > M&A: large deals ($1bn+)
• Media, technology and telecoms > Media and entertainment: litigation
• Media, technology and telecoms > Media and entertainment: transactional
• Antitrust > Merger control
• Environment > Environment: regulatory
• Media, technology and telecoms > Outsourcing
• Dispute resolution > Corporate investigations and white-collar criminal defense
• Intellectual property > Patents: licensing
• Intellectual property > Patents: litigation (full coverage)
• Intellectual property > Patents: litigation (International Trade Commission)
• M&A/corporate and commercial > Private equity buyouts: large deals ($500m+)
• Dispute resolution > Product liability, mass tort and class action - defense: consumer products (including tobacco)
• Dispute resolution > Product liability, mass tort and class action - defense: toxic tort
• Finance > Project finance
• Real estate > Real estate investment trusts (REITs)
• Energy > Renewable/alternative power
• Finance > Restructuring (including bankruptcy): corporate
• Environment > Environment: regulatory
• Dispute resolution > Securities litigation: defense
• M&A/corporate and commercial > Shareholder activism
• Industry focus > Sport
• Finance > Structured finance: derivatives and structured products
• Media, technology and telecoms > Technology transactions
• Media, technology and telecoms > Telecoms and broadcast: regulatory
• Media, technology and telecoms > Telecoms and broadcast: transactions
• Intellectual property > Trade secrets (litigation and non-contentious matters)
• Tax > US taxes: contentious
• Tax > US taxes: non-contentious
• M&A/corporate and commercial > Venture capital and emerging companies

Firm Rankings

• International Trade > CFIUS
• Intellectual property > Copyright
• M&A/corporate and commercial > Corporate governance
• Energy > Energy regulation: electric power
• Energy > Energy regulation: oil and gas
• Dispute resolution > Financial services litigation
• Dispute resolution > General commercial disputes
• Insurance > Insurance: non-contentious
• Dispute resolution > International litigation
• Investment fund formation and management > Private equity funds (including venture capital)
• Real estate > Real estate
• Healthcare > Service providers
• Finance > Structured finance: securitization
• International Trade > Customs, export controls and economic sanctions
• Government > Government contracts
• Healthcare > Health insurers
• Dispute resolution > Leading trial lawyers
• Intellectual property > Trademarks: litigation
• Dispute resolution > International arbitration
• Finance > Financial services regulation
• Dispute resolution > Appellate: courts of appeals / Appellate: supreme courts (states and federal)