Marianna G. Dyson

Robert S. Litt is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Robert S., who practices law in Washington, District of Columbia, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Robert S. is held by other top lawyers in the same geographic and legal practice area.

Jeremy R. Mandell is a top attorney recognized by Best Lawyers in the practice area(s) of FinTech Practice. Jeremy R., 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 Jeremy R. is held by other top lawyers in the same geographic and legal practice area.

Sanford K. Ain is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Real Estate Law. Sanford K., who practices law in Washington, District of Columbia, has been recognized since 1983. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sanford K. is held by other top lawyers in the same geographic and legal practice area.

Will Planert is a Partner in the firm’s International Trade practice. He concentrates on representing multilateral and foreign-based corporations in a wide variety of international trade disputes, including antidumping and countervailing duty investigations, Section 201 (safeguards) cases, anticircumvention investigations, and customs compliance matters. Mr. Planert appears regularly before the U.S. Department of Commerce, the U.S. International Trade Commission, and the U.S. Bureau of ...

For more than 15 years, Leigh has been helping families and individuals navigate matters that include divorce, custody, visitation, spousal support, child support, property division and protective orders. She represents clients throughout Northern Virginia in all aspects of domestic relations litigation. While litigation is a fundamental aspect of her practice, the majority of her cases settle outside of court. It is Leigh’s goal to help clients reach an agreement in the most efficient ...

David J. Ross is a top attorney recognized by Best Lawyers in the practice area(s) of Government Relations Practice and International Trade and Finance Law. David J., 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 David J. is held by other top lawyers in the same geographic and legal practice area.

Brian E. Ferguson is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Patent. Brian E., 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 Brian E. 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. ‍ ...

John's practice focuses on the representation of mutual funds, exchange-traded funds (ETFs), closed-end funds and business development companies (BDCs) and their independent board members. He advises clients on a range of matters, including the formation, operation, merger and liquidation of mutual funds, closed-end funds, ETFs, and BDCs. John has extensive experience working on transactions involving registered funds, such as adviser acquisitions, fund adoptions and product launches.

Tanja H. Castro co-founded CastroHaase PLLC in 2012. She is included in the 2013, 2014, 2015 and 2016 editions of Washington, DC & Baltimore’s Best Lawyers. Her practice is focused in the areas of commercial real estate valuation and taxation issues, including property tax assessment appeals. She advises clients on minimizing their real estate tax obligations. Ms. Castro is experienced in reviewing, analyzing and obtaining reductions in the assessments of all types of commercial pro...