Mark Schwartz became County Manager in January 2016 after serving six months as Acting County Manager. He is a former Deputy County Manager and Director of the Department of Management & Finance.
Michelle Cowan has been working as a Deputy County Manager since July 1, 2015. Prior to this position, Michelle has served Arlington County as the Director of Management and Finance.
Shannon Flanagan-Watson was appointed Deputy County Manager in May 2018. She has oversight responsibility for Arlington Economic Development (AED), the County’s Business Improvement Districts (BIDs), the Department of Community Planning, Housing and Development (CPHD) and the Department of Technology Services (DTS). She is also responsible for Constituent Services and Legislative Affairs, and serves as the Sister Cities Liaison.
Samia Byrd is the Chief Race and Equity Officer, leading the County’s work to advance racial equity, diversity and inclusion both internal and external to the organization.
Lynne Porfiri is the Chief of Staff and has been with the County since 2008.
Bryna Helfer is an Assistant County Manager and Director of Communications and Public Engagement.
Other Staff Lists