Keith M. Rosen

Eric Core, an attorney with Lerch, Early & Brewer, co-chairs the firm's Estate Planning & Probate group. Widely respected for his extensive knowledge of estate and tax law, Eric has been helping people with estate plans and trust and estate administration for more than 30 years. Eric works closely with personal representatives and trustees on all aspects of estate and trust administration to ensure they fulfill their fiduciary responsibilities. Eric also has an extensive background in...

Jack S. Barufka is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. Jack S., who practices law in Tysons, Virginia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jack S. is held by other top lawyers in the same geographic and legal practice area.

Diara M. Holmes serves as co-chair of the firm's Tax-Exempt Organizations Practice. She counsels tax-exempt organizations, including large public charities; colleges, universities and other higher education organizations; foreign charities and their U.S. affiliates; associations; government instrumentalities; social welfare organizations; and religious organizations on a broad range of tax compliance and governance issues. She advises nonprofit and for-profit organizations on structuring a va...

Daniel L. Nash is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment and Sports Law. Daniel L., 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 Daniel L. is held by other top lawyers in the same geographic and legal practice area.

Biz is a leader in the field of criminal defense and internal investigations focusing on white-collar defense and health care cases. Biz regularly represents clients in congressional and criminal fraud investigations as well as qui tam, Foreign Corrupt Practices Act (FCPA), False Claims Act (FCA), civil RICO, and employment litigation. She has counseled clients — including boards, audit committees, and management — on the development and implementation of internal compliance and e...

David M. Blank is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. David M., 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 David M. is held by other top lawyers in the same geographic and legal practice area.

David Sanford is the Chairman and co-founder of Sanford Heisler Sharp LLP. He has recovered more than one billion dollars for individual clients and the United States government since 2004. David represents C-suite executives and non-managerial hourly employees throughout the US. He has served as lead counsel in more than 50 class actions and numerous qui tam cases around the country and represented more than 100 general counsel and attorneys (in-house and outside counsel) in contract dispute...

Dennis Russell Hughes is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Dennis Russell, 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 Dennis Russell is held by other top lawyers in the same geographic and legal practice area.

Janel Quinn is a top attorney recognized by Best Lawyers in the practice area(s) of Qui Tam Law. Janel, 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 Janel 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. ‍ ...