Skip to main content

People
Services
Insights & Events
About Us
Client Stories

Offices
Careers
Bill Pay
Contact

Offices
Careers
Bill Pay
Contact

People
Services
Insights & Events
About Us
Client Stories

People

Search by last name:

Administrative and Regulatory Litigation
Artificial Intelligence & Machine Learning
(-) Corporate
Crisis Management, Internal Investigations and White-Collar Defense
Data Protection & Cybersecurity
False Claims and Internal Investigations
Foreign Corrupt Practices Act
Foreign Direct Investment (FDI)
Government Contracts Litigation and Investigations
Infrastructure
Intellectual Property
Intellectual Property Litigation
International Trade and Business
Litigation
Mergers & Acquisitions
Outside General Counsel
Patent Prosecution
Private Equity and Venture Capital
Renewable Energy
Securities & Corporate Governance
Solar & Energy Storage
Solid Waste Management and Resource Recovery
State and Local Bid Protests
Trademarks
Wind Energy

Facet Facet Practice Areas

Auto Dealerships
Coastal Flooding & Resiliency
Construction
Data Centers
Economic Development
Electric Cooperatives
Emerging Companies
Energy
Government Contracts
Health Care
Health Care Litigation
(-) Manufacturing
Retail
Unmanned Systems

Facet Facet Industries

Raleigh, NC
Richmond, VA
(-) Tysons, VA
Virginia Beach, VA

Facet Facet Locations

Partner

Facet Facet Position

District of Columbia Bar
Ohio State Bar
Virginia State Bar

Facet Facet Bar Admissions

Case Western Reserve Law School
St. Louis University
University of Virginia
University of Virginia School of Law

Facet Education » Paragraph » School New

Advanced Search

RESET

William J. Halliday photo

William J. Halliday

Partner

EMAIL

Tysons, VA

T. 703.760.5214 703.760.5214

Robert F. Riley

Partner

EMAIL

Tysons, VA

T. 202.293.8121 202.293.8121

Get in Touch
Subscribe

Contact us today and discover how our experienced team can assist you. Subscribe to our mailing list for the latest legal updates, insights and upcoming events delivered straight to your inbox.

CONTACT US

© 2025 Williams Mullen