Cozen O’Connor: Mazo, Samantha L.

Samantha L. Mazo

Of Counsel

Washington, D.C.

(202) 747-0768

(202) 861-1905

Samantha has more than a decade of zoning experience in representing clients in all aspects of the development life cycle. She has worked on matters spanning from conducting zoning due diligence prior to purchase, to processing cases for development approvals before the District of Columbia’s Board of Zoning Adjustment, Zoning Commission, Historic Preservation Review Board and D.C. Court of Appeals, to coordinating construction permitting approvals from the District’s Department of Consumer and Regulatory Affairs.

Samantha advances her clients' interests to governmental and community stakeholders in order to achieve viable and comprehensive development outcomes. She also works closely with other members of the development team to prepare architectural plans and other materials necessary for presentation to the District and local community.

A third-generation Washingtonian, Samantha is involved in the community, having served on the board of a regional chamber of commerce and chaired a local transportation advisory commission. Samantha is currently on the Steering Committee for the D.C. Bar’s Real Estate, Housing and Land Use Community. She frequently presents on matters relating to Washington, D.C., zoning and permitting. Samantha was named as one Washington D.C.’s top “35 under 35” in Washington, D.C. by Bisnow Media. 

Samantha earned her J.D., cum laude, from George Washington University Law School, her master’s degree in modern history from Oxford University and her undergraduate degree from Princeton University.



Cozen O’Connor Continues Rapid Expansion in Washington, D.C., with Addition of Zoning, Land Use & Development Group

June 27, 2017

The group is led by Meridith Moldenhauer, who joins as a member, and includes Samantha Mazo, who joins as of counsel, Alyssa Bigley and Eric DeBear, who both join as attorneys, and Stephen Varga, who joins as planning services director.


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  • The George Washington University Law School, J.D., cum laude, 2003
  • Oxford University, M.A., 2000
  • Princeton University, A.B., cum laude, 1999
  • District of Columbia
  • Maryland