ASSOCIATE
Contact Information
Phone: (202)599-2556
Email: ymoskowitz@keyesfox.com
Washington, DC
1050 Connecticut Ave NW,
Suite 500,
Washington, DC 20036
Admissions & Applications
• State Bar of California
•Application Submitted: District of Columbia (Not admitted. Practicing under the supervision of a member of the D.C. Bar.)
Experience
Yonatan joined Keyes & Fox in 2025 to facilitate his client’s clean energy deployment and policy development goals. He represents clients in the regulatory, litigation, transactional, and policy arenas, and provides counsel on matters of importance to community choice aggregators, distributed energy resource owners and developers, interested civil society groups, and clean energy consumers.
Most recently, Yonatan served as a Senior Legal Advisor in the U.S. Department of Energy (“DOE”) General Counsel’s front office from 2023 – 2025. At DOE, he devised and implemented DOE’s legal strategy managing enterprise-wide strategic risks presented by external investigations. Yonatan led the legal preparation of over a dozen of DOE’s senior-most executives—including the Secretary and Deputy Secretary—for hearings and external briefings on the implementation of the Inflation Reduction Act and the Bipartisan Infrastructure Law. He also advised on and defended DOE’s decisions relating to tax credits, loans, grants, artificial intelligence, and regulatory matters.
Before his time at DOE, Yonatan worked on litigation, policy, and investigations as an attorney for multiple Congressional committees. He also brings experience from his work for public interest nonprofits, political campaigns, and an employment law firm. He has litigated complex regulatory matters in trial, appellate, and state supreme court, and has also defended clients and their members in investigations, arbitrations, and mediations.
Education
- J.D., Stanford Law School, 2015
- M. Sc., University of Oxford, Social Science of the Internet, 2012
- A.B., Georgetown University, Economics and Philosophy, 2010