Kenneth W. "Ken" Irvin

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.

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

Michelle L. Butler provides counsel on government pricing, health care, and FDA law in the area of prescription drugs and biologics. Across these practice areas, she specializes in the interpretation of complex regulations. Ms. Butler advises clients on changes in health care law and how these changes affect calculation and reporting across government pricing programs, specifically the Medicaid Drug Rebate Program, the 340B Program, the Medicare Part B Average Sales Price calculation, and the...

Nancy Fischer is a top attorney recognized by Best Lawyers in the practice area(s) of International Trade and Finance Law. Nancy, 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 Nancy 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.

Adam M. Smith is a top attorney recognized by Best Lawyers in the practice area(s) of International Trade and Finance Law. Adam 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 Adam M. is held by other top lawyers in the same geographic and legal practice area.

Daniel Porter is a top attorney recognized by Best Lawyers in the practice area(s) of International Trade and Finance Law. Daniel, who practices law in Washington, District of Columbia, has been recognized since 2012. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Daniel is held by other top lawyers in the same geographic and legal practice area.

Ms. Harden has 20 years of civil litigation experience in the Commonwealth of Virginia. She has litigated diverse and varied topics throughout her career including eminent domain, breach of contract, medical malpractice, construction defect, partition, establishment of prescriptive easement, professional liability, covenant enforcement, and actions to quiet title. In recent years, Ms. Harden’s practice has focused on representing condemning authorities in eminent domain matters. Ms. Har...

James P. Durling is a top attorney recognized by Best Lawyers in the practice area(s) of International Trade and Finance Law. James P., 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 James P. is held by other top lawyers in the same geographic and legal practice area.

Paula Calimafde chairs the firm’s Retirement Plans , Employee Benefits and Government Relations practice groups and is also a senior member of the Estate Planning , Tax and Nonprofit groups. She has more than 35 years of experience advising companies and tax-exempt organizations on qualified and non-qualified retirement plans and employee benefits, including non-qualified deferred compensation, welfare benefit and cafeteria plans. She is a nationally recognized leader in the field of cr...