Jeffrey N. Greenblatt

For more information, please visit www.gibsondunn.com/lawyer/harrison-Donald/ .

James (Jim) Van Horn focuses his practice on restructuring and insolvency law. He is a trusted adviser valued by clients for his practical, results-oriented approach and creative strategies in solving complex matters within the framework of their business goals. Jim is ranked as a Band 1 bankruptcy/restructuring attorney by Chambers USA and is named to The Best Lawyers in America. Jim has deep experience working directly with senior management, investors, creditors and other stakeholders in m...

Allison has advocated extensively for clients in government contracts litigation before the Boards of Contract Appeals (BCA) and the U.S. Court of Federal Claims, as well as in bid protests before the Government Accountability Office (GAO). In these processes, she places clients in the best position for successful outcomes by covering all bases and ensuring she’s diligently safeguarding their rights under specific contract clauses. Outside of dispute resolution, Allison also advises gov...

Alonso J. Cisneros is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Alonso J., who practices law in Bethesda, Maryland, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Alonso J. is held by other top lawyers in the same geographic and legal practice area.

Thomas F. Quinn III is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Thomas F., who practices law in Reston, Virginia, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thomas F. is held by other top lawyers in the same geographic and legal practice area.

Neil L. Levy focuses his practice on energy-related regulatory and transactional matters. He represents independent power producers, electric power and natural gas marketers, merchant transmission developers, interstate pipelines and local distribution companies before the Federal Energy Regulatory Commission (FERC), state public utility commissions and the courts of appeal. Neil regularly represents private equity clients in merger and acquisition transactions in the energy sector. He also f...

David Cavanaugh has broad legal experience in industry and private practice and provides clients with strategic, business-focused counseling in the procurement, management and exploitation of their intellectual property. He has extensive experience in all aspects of intellectual property practice, including IP litigation, patent procurement, technology transfer and licensing, and due diligence for corporate transactions. Mr. Cavanaugh has developed and implemented intellectual property strate...

Recognized by the Washington Post as “ the feared attorney of the #MeToo movement ,” Debra S. Katz has been successfully litigating employment discrimination, civil rights, and whistleblower protection cases for nearly 40 years. Ms. Katz is a founding partner of Katz Banks Kumin LLP, where she concentrates her practice on employment discrimination, sexual harassment, wrongful discharge, whistleblower retaliation claims, and contractual employment disputes. She has developed extens...

Jeff represents every regulatory and transactional concern of equipment manufacturers and government contractors, as well as wireless, video and data providers, and end-users. He represents equipment manufacturers with respect to all applicable FCC regulations, including those governing importation, emissions compliance, equipment authorization/labeling, and marketing. Jeff has extensive experience in matters relating to experimental licensing for military, homeland security and other high-te...

Christopher Mangin, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Leveraged Buyouts and Private Equity Law and Mergers and Acquisitions Law. Christopher, 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 Christopher is held by other top lawyers in the same geographic and legal practice area.