Erin Book Mullen


T: 202-659-8201
F: 202-659-5249

Erin Book Mullen joined Williams & Jensen in 2011 and became a Principal in 2016. Ms. Mullen has over a decade of experience in legislative, regulatory, and public policy advocacy at the federal level. She offers clients creative and comprehensive approaches to both large and small-scale advocacy efforts.

Professional background

Ms. Mullen has represented a diverse range of clients across multiple practice areas before Congress and the Administration, developing and executing comprehensive legislative strategies; organizing and managing coalitions; and facilitating communications with policymakers and grassroots contacts.  Ms. Mullen has developed strong relationships with House and Senate Leadership, key committees, as well as Members of Congress and staff.  In addition, Ms. Mullen has been spent time volunteering for numerous political campaigns since 2004.

From 2007 – 2010, Mrs. Book Mullen worked at SNR Denton, a global law and lobbying firm.  Before working at SNR Denton, Ms. Mullen worked at Williams & Jensen as a Manager of Government Relations.


  • Elon University

Not licensed to practice law.