• Randolph-Macon Woman's College, B.A.
  • Duke University, Sanford School of Public Policy, M.P.P.
  • College of William & Mary, Mason School of Business, M.B.A.
  • College of William & Mary Marshall-Wythe School of Law, J.D.


  • District of Columbia
  • Virginia
  • U.S. District Courts, Eastern District of Virginia
  • U.S. District Courts, Western District of Virginia

Catherine O. Shames


Catherine O. Shames is an associate in the Washington, D.C. office of Crowell & Moring, where she is a member of the firm’s Government Contracts Group. 

Catherine’s government contracts practice focuses on contract claims/disputes under the Contract Disputes Act (CDA), prime-sub disputes, transactional due diligence, internal investigations, and disclosures under the Mandatory Disclosure Rule. She also assists contractors with cost allowability issues and responding to DCAA audits. 

Catherine is active in pro bono matters. She has represented low-income individuals in contested custody disputes and in housing disputes against landlords to remediate unsafe housing conditions.

During law school, Catherine interned for the Honorable Lydia Kay Griggsby at the U.S. Court of Federal Claims. Catherine also completed U.S. Department of Justice internships with the Office of the Pardon Attorney, the Tax Division, the Executive Office for U.S. Attorneys, and the Commercial Litigation Branch, Fraud Section.

Prior to law school, Catherine was a legal analyst at the nation’s largest military shipbuilding company where she gained valuable government contract experience.

Speeches & Presentations

Client Alerts & Newsletters

Firm News & Announcements

February 22, 2019 Law360 Names Crowell & Moring's Government Contracts Group a "Practice Group of the Year" for the Ninth Consecutive Year