Courtney A. Miller

David Schertler is widely recognized as one of the top white–collar criminal defense attorneys in the Washington area and nationwide. He founded Schertler & Onorato, LLP, in 1996 and has built the firm’s reputation as a premier litigation boutique through his broad experience with criminal and civil investigative and trial matters and the results that he has achieved for his clients. Mr. Schertler is known for his skilled and tenacious representation of individuals and entitie...

For more information, please visit www.gibsondunn.com/lawyer/warin-f-joseph/ .

David Levine is co-chair of the firm’s employer-focused practice. He advises plan sponsors, advisors, and other service providers on a wide range of employee benefits matters, from retirement and executive compensation to health and welfare plan matters. David advises on the design and redesign of complex retirement, executive, and health and welfare plans; ongoing, day-to-day counseling of plan sponsors; in-depth compliance reviews of corporate and governmental benefit programs; altern...

Leon B. Greenfield is a top attorney recognized by Best Lawyers in the practice area(s) of Antitrust Law. Leon B., who practices law in Washington, District of Columbia, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Leon B. is held by other top lawyers in the same geographic and legal practice area.

Lisa Hawke is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. Lisa, who practices law in Washington, District of Columbia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lisa is held by other top lawyers in the same geographic and legal practice area.

Chair of the firm’s Natural Resources Department and the American Indian Law & Policy Group. Represents tribal nations, those doing business with tribes and western water districts. Proven ability to resolve natural resource and water disputes before Congress and the Department of the Interior. Ryan Smith represents tribes, water districts and corporations before Congress, the Department of the Interior and the courts on tribal issues and Western natural resource issues. He has sign...

Barry Boss is co-chair of Cozen O’Connor’s Criminal Defense & Internal Investigations practice group, vice chair of the Commercial Litigation Department and office managing partner of the D.C. office. Prior to joining Cozen O’Connor in April 2004, Barry was an assistant federal public defender in Washington, D.C. Barry focuses his practice on complex criminal matters, particularly involving allegations of white-collar crime in federal court. Barry has extensive jury tria...

Tyrone P. Thomas is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Individuals and Sports Law. Tyrone P., who practices law in Washington, District of Columbia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tyrone P. is held by other top lawyers in the same geographic and legal practice area.

Patrick J. Howley is a shareholder in the Firm’s Trusts & Estates Department. His practice focuses on estate planning for individuals and families, as well as representation of fiduciaries in the administration of estates and trusts. Mr. Howley counsels clients on the use of Wills, Revocable Trusts, Financial Powers of Attorney, Health Care Powers of Attorney and Living Wills to accomplish their estate planning objectives. He also advises on the use of advanced techniques designed t...

Robert C. MacKichan Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Real Estate and Real Estate Law. Robert C., who practices law in Washington, District of Columbia, has been recognized since 2008. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Robert C. is held by other top lawyers in the same geographic and legal practice area.