Gregory A. "Greg" Castanias

Barak Cohen is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Barak, 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 Barak is held by other top lawyers in the same geographic and legal practice area.

Andrew Rubin’s practice is focused on helping nonprofits and state, local, and tribal governments finance development projects that support local communities. Andrew also serves as a trusted adviser to nonprofits for tax and transactional matters. My focus I believe it is important to always have the right tools for a project. My toolbox includes federal tax credits, tax-exempt bonds, property assessed clean energy (PACE & C-PACE), state and local tax incentives and tax increment fi...

Vincent “Vince” McKnight, Jr., is the Managing Partner of Sanford Heisler Sharp’s Washington, D.C., office and Co-Chair of the firm’s Whistleblower Practice. He also represents clients in employment discrimination and wrongful discharge cases. Vince represents whistleblowers in sealed and unsealed False Claims Act/qui tam suits under investigation by the United States and other governmental stakeholders. He has achieved significant success in such cases, including the ...

Joseph L. Barloon is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar and Financial Services Regulation Law. Joseph L., 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 Joseph L. is held by other top lawyers in the same geographic and legal practice area.

Sally Ann Hostetler is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Construction. Sally Ann, who practices law in Reston, Virginia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sally Ann is held by other top lawyers in the same geographic and legal practice area.

Jonathan R. Mook is a nationally recognized expert in employment law, particularly the Americans with Disabilities Act. He is an author of two Matthew Bender treatises on the Americans with Disabilities Act, the “Americans with Disabilities Act: Employee Rights and Employer Obligations” and “Americans with Disabilities Act: Public Accommodations and Commercial Facilities.” He is an editor for the Virginia Employment Law Letter and a member of the editorial board for th...

Mr. Atkins is the leader of Pillsbury’s Intellectual Property Litigation team. He is a trial and appellate lawyer with 20 years of experience. He is a registered patent attorney who personally handles all of his cases and has won jury verdicts on both sides of the courtroom. Recent victories include (1) getting two university co-inventors added onto two NIH cancer drug patents with annual sales of approximately $2B, (2) an infringement jury verdict for a consumer product against a major...

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.

Conflict is at the core of many divorces and can produce volatile emotions. Divorcing clients appreciate the combination of strength and compassion Katherine brings to her cases, especially when substance abuse, mental illness, domestic violence or contested child custody issues are involved. Katherine firmly believes in putting the children first in every divorce situation and in trying to reduce conflict between divorcing parents. A skilled problem-solver, Katherine acts decisively on behal...

Matt Perushek has practiced personal injury law his entire career. He exclusively represents plaintiffs, those who were injured because of the negligence of others. He has represented clients in wrongful death, medical malpractice, brain injury, products liability, and serious automobile collision cases. Matt has tried cases in courts throughout Virginia, including Fairfax, Arlington, Prince William, Loudoun, Henrico, and Fredericksburg. Matt also has experience representing clients in federa...