Natalie R. Wengroff

William J. Cople III defends government contractors and commercial companies in a range of critical industries in government investigations, litigation, trials, and prosecutions involving the False Claims Act, Anti-Kickback statute, and Foreign Corrupt Practices Act, and handles corporate internal investigations, whistleblower claims, and Congressional investigations. He represents pharmaceutical, medical device, financial institution, and engineering and construction firms as trial counsel i...

David C. Kully is a top attorney recognized by Best Lawyers in the practice area(s) of Antitrust Law and Litigation - Antitrust. David C., 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 David C. is held by other top lawyers in the same geographic and legal practice area.

Merrill Kramer represents energy project developers, private equity companies, and institutional lenders on the development, financing, sale, acquisition, and investment in energy projects and portfolios. Merrill represents some of the most active and innovative players in the energy industry. He has represented Fortune 200 companies and other clients in the development and financing of over 80 energy infrastructure projects representing more than $30 billion in invested capital. Merrrill has...

Lauri E. Cleary is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice, Commercial Litigation, Criminal Defense: White-Collar, Employment Law - Management, Litigation - Insurance and Litigation - Labor and Employment. Lauri 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 Lauri E. is held by other top lawyers in the same geographic ...

Patrick Taurel is a top attorney recognized by Best Lawyers in the practice area(s) of Immigration Law. Patrick, 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 Patrick is held by other top lawyers in the same geographic and legal practice area.

Christopher S. Rizek is a Member in Caplin & Drysdale's Washington, D.C., office. He also serves as General Counsel to the firm. In 2014, he was listed in the elite "Leading Lawyer" list for Tax Controversy by The Legal 500 . Services Mr. Rizek represents taxpayers in all types of federal civil and criminal tax controversy matters. He also guides clients through IRS audits, prepares administrative claims and protests of IRS actions, and litigates tax and tax-related cases in U.S. district...

Constantine G. Papavizas is a top attorney recognized by Best Lawyers in the practice area(s) of Admiralty and Maritime Law. Constantine G., 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 Constantine G. is held by other top lawyers in the same geographic and legal practice area.

Vincenzo is one of the four founding partners of Rock Creek Energy Group. Vincenzo represents generation owners and developers, energy traders, private equity firms, financial institutions, and other investors on transactional, regulatory, and compliance matters involving the Federal Energy Regulatory Commission (FERC) and advises clients on the requirements of the Federal Power Act, the Public Utility Holding Company Act of 2005, and the Public Utility Regulatory Policies Act of 1978. ‍ ...

Seth Perretta advises clients on a wide range of federal tax and ERISA matters regarding employee benefits and insurance. His practice encompasses qualified retirement plans, executive compensation, federal income and employment taxes, health and welfare arrangements, and insurance. Seth represents employers, private equity and investment firms, insurance companies, professional employer organizations (“PEOs”), trade associations, and public policy organizations on all aspects of ...

A recognized authority on international labor standards, Stefan Marculewicz advises multi-national corporations on issues involving employer efforts to address and respond to international labor standards. He also advises multinational enterprises in connection with the following: The International Labour Organization and its Committee on Freedom of Association The Organisation for Economic Co-operation and Development The United Nations Global Compact The United Nations Guiding Principles on...