Cassandra Mastrostefano

D. Kirk Morgan II is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law and Oil and Gas Law. D. Kirk, who practices law in Washington, District of Columbia, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which D. Kirk is held by other top lawyers in the same geographic and legal practice area.

Naveen Modi is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Patent. Naveen, 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 Naveen is held by other top lawyers in the same geographic and legal practice area.

Richard’s multinational clients benefit from his extensive experience with tax planning and controversy and trust his guidance to resolve challenging transfer-pricing issues as well as to develop, implement, and defend tax-efficient cross-border structures. For more than 25 years, he has advised clients on tax matters, with a focus on transfer pricing. Richard’s international clients span multiple industries, including transportation, finance, hospitality, electronics, food and be...

Jonathan C. Drimmer is a partner in the firm's Washington, D.C., office, where he resolves anti-corruption, business and human rights and other complex cross-border challenges with the benefit of having sat in every chair at the table: senior legal officer for a global 500 company, federal prosecutor, and seasoned advocate. He is a frequent speaker, author, and commentator on issues related to anti-corruption and business and human rights, and represents and advises companies, individuals, mu...

Dara Levy helps pharmaceutical and medical device companies on a wide range of issues relating to product communications, marketing, and import/export. Dara assists clients with products in all stages of development to design engaging communications compliant with FDA legal and regulatory requirements. In the pre-marketing stage, Dara works with companies to strategically communicate with investors, potential marketing partners, and the scientific community, as well as implement effective dis...

Seth Goldberg is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law. Seth, who practices law in Washington, District of Columbia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Seth is held by other top lawyers in the same geographic and legal practice area.

For over twenty-five years, Wendy has represented a diverse range of energy clients including investor-owned utilities, independent generators, investors in transmission infrastructure and local gas distribution companies before the Federal Energy Regulatory Commission (FERC), the Department of Energy and federal courts. Her practice focuses on rate regulation, energy market rules and operation, open access transmission issues, administrative litigation, mergers and acquisitions, enforcement ...

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. ‍ ...

Carol L. Ehlenberger is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Carol L., who practices law in Reston, Virginia, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Carol L. is held by other top lawyers in the same geographic and legal practice area.

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...