Allyn believes that environmental compliance makes good business sense and knows that businesses are in a unique position to drive change.

As a former EPA Regional Counsel with 30 years of agency experience, Allyn joined Beveridge & Diamond in 2019, bringing her government expertise to the private sector. She is dedicated to helping businesses develop proactive environmental compliance strategies, navigate governmental regulations, and negotiate with agencies to develop reasonable and implementable solutions to enforcement matters. Whether the matter involves air, water, or waste regulation, Superfund cleanup, reuse and recycling, or disaster preparedness, Allyn’s diverse experience serves as a guiding authority on environmental compliance and government regulations.

As Regional Counsel, she was the senior executive responsible for advising career staff and political appointees on litigation strategy, enforcement approaches, and decision making to implement all the laws under EPA authority. Her work also influenced national decision making, particularly on enforcement matters, Superfund, and Clean Water Act litigation and policy.

Allyn lived in San Francisco for 25 years and now resides in the Pacific Northwest. She is an avid reader and book collector who previously owned a successful bookstore. She enjoys sharing her knowledge and teaching negotiation skills, environmental law, and environmental enforcement. She has held adjunct teaching positions at the University of California Hastings School of Law, Seattle University, and Seattle University Law School.

Allyn co-chairs Beveridge & Diamond's Water and Textiles and Fashion groups. She also co-chairs the Women in Environment & Energy Law Affinity Group of the National Association of Women Lawyers and the Waste & Resource Recovery section of the American Bar Association.


  • Indiana University  (B.A., 1983)
  • George Washington University  (J.D., 1987)

Bar Admissions

  • Washington
  • California
  • District of Columbia

Professional Affiliations

  • Co-Chair, National Association of Women Lawyers, Environmental and Energy Law Affinity Group
  • Vice Chair, American Bar Association, Waste & Resource Recovery Committee