Cassandra L. Horton

Kevin P. O’Brien is a partner in the firm’s Employee Benefits and Executive Compensation practice. His practice has concentrated in employee compensation and benefits for over 30 years. Kevin is widely known as a leader in a wide variety of subjects, including innovative defined benefit plan design, flexible benefits, ERISA fiduciary matters and executive compensation. Before joining the firm, Kevin worked in the Pension and Welfare Benefits Administration at the Labor Department ...

Justin S. Alex is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Justin S., 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 Justin S. is held by other top lawyers in the same geographic and legal practice area.

For more information, please visit www.gibsondunn.com/lawyer/mueller-ronald-o/ .

Practicing in the area of energy law, Elizabeth Whittle counsels clients with respect to natural gas, hydroelectric and electric regulatory and transactional matters. What do you focus on? Federal Regulatory I am an active practitioner before the Federal Energy Regulatory Commission, representing clients in hearings, settlement conferences and adversary proceedings in the natural gas, electric and hydroelectric areas. I am active in proceedings involving regional transmission organizations an...

Paul E. Alpuche, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Business Organizations (including LLCs and Partnerships), Closely Held Companies and Family Businesses Law and Tax Law. Paul E., who practices law in Bethesda, Maryland, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Paul E. is held by other top lawyers in the same geographic and legal practice area.

Susan E. Seabrook is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Susan E., who practices law in Washington, District of Columbia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Susan E. is held by other top lawyers in the same geographic and legal practice area.

Catherine D. “Katie” Bertram started the Bertram Law Group, building on decades of experience as both a medical malpractice attorney and director of risk management at Georgetown University Hospital. In those environments, she learned how doctors and hospitals work, as well as how their attorneys assess claims against them. She draws on this knowledge to advocate for patients and their families. “People want someone competent, caring, and careful. They’ve just gone thr...

Rachael Kent has more than 25 years of experience representing companies, states, state entities, and individuals in commercial and investment arbitration proceedings worldwide. She is widely recognized for her expertise in the field and for her exceptional written and oral advocacy skills. She has been the lead advocate in numerous complex arbitrations in the energy, mining, aerospace, defense, pharmaceutical, construction, insurance, telecommunications, technology and retail sectors, among ...

Rachel Bond counsels domestic and international clients on regulatory compliance of food contact materials, as well as cosmetic and drug packaging materials, with the laws and regulations administered by the U.S. Food and Drug Administration (FDA) and its foreign counterparts. With nearly two decades of regulatory experience, Rachel pairs innovative legal and sound scientific strategies to help her clients bring new products to market and achieve broadened markets for their products. She assi...

Matthew D. Berkowitz is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Mass Tort Litigation / Class Actions - Defendants. Matthew D., 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 Matthew D. is held by other top lawyers in the same geographic and legal practice area.