Hannibal G. Williams II Kemerer

Squire Patton Boggs

Hannibal G. Williams II Kemerer leverages his experience as a litigator and the relationships he developed as chief counsel for a US Senate Judiciary subcommittee to assist clients in achieving their compliance, litigation and regulatory goals. He has represented clients in a wide range of industries, including energy, agriculture, higher education, healthcare, medical devices, fisheries and municipalities.

Hannibal served as the chief counsel of the Senate Judiciary Committee’s Crime and Drugs Subcommittee, where he was the lead lawyer for Senator Arlen Specter. In this position, he was a principal Judiciary Committee lawyer to a five-term incumbent who had served as both Chairman and Ranking Member of the Committee.

He served on the Judiciary Committee staff during the Supreme Court confirmation hearings of Chief Justice Roberts, as well as Justices Alito, Sotomayor and Kagan, serving as Senator Specter’s lead lawyer on the hearings for Justices Sotomayor and Kagan.

Prior to his service on the Judiciary Committee staff, Hannibal was an Assistant General Counsel at the National Association for the Advancement of Colored People (NAACP) at its headquarters in Baltimore, where he maintained a nationwide litigation portfolio and helped orchestrate a multipronged strategy to obtain relief for African American visitors to Myrtle Beach, South Carolina during “Black Bike Week.” Before joining the NAACP staff, Hannibal litigated complex, multiparty employment cases at a Maryland law firm.


  • George Washington University Law School, J.D., 1999
  • Arizona State University, B.A., 1996


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What types of cases Attorney Hannibal G. Williams II Kemerer & Squire Patton Boggs can handle?
Squire Patton Boggs can handle cases related to laws concerning Litigation, Education, White Collar Crime, Health Care, Government. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
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Squire Patton Boggs is located at 2550 M St NW, Washington, DC 20037, USA. You can reach out to Squire Patton Boggs using their phone line 202 457 6429. You can also check their website squirepattonboggs.com.
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Squire Patton Boggs
M Street Northwest 2550
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