Jason Semmes
About Jason Semmes
Jason Semmes is a lawyer based in Washington, DC and has been recognized in Best Lawyers: Ones to Watch® in America since 2026. Jason Semmes is recognized in the following practice area:
- Washington, District of Columbia
- Antitrust Law
Current Firm: Sidley Austin LLP
Education: University of Notre Dame, J.D., graduated 2017
Location: Washington, DC
It takes just a few minutes to optimize your profile for prospective clients and lawyers ready to refer.
Log in to your account or continue as a guest to view annual subscription pricing.
Nearby Lawyers
Dan Graham leads the Government Contracts practice. Highly regarded in Government Contracts litigation, Dan Graham has over two decades of experience assisting clients across industry sectors on bid protests, Contract Dispute Act appeals, prime and subcontractor disputes and commercial litigation. Read full biography here: https://www.mwe.com/people/daniel-p-graham/
Ama Adams is a lawyer recognized by Best Lawyers in the practice area of International Trade and Finance Law. Ama practices law in Washington, District of Columbia Best Lawyers has recognized Ama Adams since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Ama Adams is held by other lawyers.
Tara L. Ward is a lawyer recognized by Best Lawyers in the practice area of Government Contracts. Tara L. practices law in Washington, District of Columbia Best Lawyers has recognized Tara L. Ward since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Tara L. Ward is held by other lawyers.
Margaret A. O'Reilly is a lawyer recognized by Best Lawyers in the practice area of Elder Law. Margaret A. practices law in Fairfax, Virginia Best Lawyers has recognized Margaret A. O'Reilly since 2013. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Margaret A. O'Reilly is held by other lawyers.
Mr. Mills’ practice concentrates on securities and derivatives enforcement, regulatory counseling, and litigation. His clients include public and private companies, corporate officers, hedge funds, traders, energy marketers, broker-dealers, investment advisers commodity trading advisors and pool operators, and other professionals and executives. He represents clients in investigations and enforcement actions of the SEC, CFTC, FINRA, FERC, DOJ, state regulators and self-regulatory organi...
Steve Weber is a Partner in Peckar & Abramson PC ’s Washington, District of Columbia office and serves as Co-Chair of the firm’s Government Contracts practice. He brings more than 35 years of experience representing domestic and international contractors in construction law matters, including construction litigation and government contracts , in the United States and abroad. Steve’s practice focuses on representing construction contractors involved in power projects, hig...
Sean P. Schmergel has been consistently recognized as one the DMVs top divorce and family law attorneys, including by Washingtonian Magazine, Arlington Magazine, Super Lawyers and Best Lawyers. He began practicing divorce and family law over 22 years ago and has continued to hone his legal practice before the local courts, developing a reputation as a zealous and thoughtful family law advocate. A resident of Northern Virginia for over 36 years, Mr. Schmergel holds a genuine concern for the le...
William M. Klimon is a Member in Caplin & Drysdale's Washington, D.C., office. Mr. Klimon joined the firm in 2001 after he had previously practiced in the corporate law departments of two other national law firms. Since 2012, The Legal 500 has listed Mr. Klimon as a leader in his field for Not-for-Profit and Domestic Tax: East Coast. Services Mr. Klimon's practice focuses on corporate governance and transactions, particularly for nonprofit organizations. Over the last decade, he has advis...
Lisa Hawke is a lawyer recognized by Best Lawyers in the practice area of Health Care Law. Lisa practices law in Washington, District of Columbia Best Lawyers has recognized Lisa Hawke since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Lisa Hawke is held by other lawyers.
Wayne Lalle concentrates his practice on Construction Law, with an emphasis on construction infrastructure projects. Based in McLean, Virginia, he represents both contractors and public owners in matters involving complex public and private construction projects. His work includes advising on project development and contract formation for infrastructure initiatives, including public-private partnerships. Mr. Lalle’s recent infrastructure work includes drafting and negotiating contracts ...
Explore and Learn
What AI Visibility Means for Lawyers
by Bryan Driscoll and Josh Rupall
AI tools increasingly interpret lawyers public information. Clear, consistent and credible sources help ensure they describe legal expertise accurately.
The Best Lawyers in Canada 2027: Recognizing the Nation's Top Legal Talent
by Jamilla Tabbara
Honoring established leaders and rising practitioners across Canada's legal profession.
2027 Best Lawyers Awards: Honoring Excellence in the Legal Profession
by Jamilla Tabbara
Recognizing the outstanding attorneys leading top practice areas nationwide.
Musk v. Altman: The Lawyers Behind the Case
by Jamilla Tabbara
Meet the Trial Lawyers Shaping One of AI's Biggest Legal Disputes.
Announcing the 2027 Best Lawyers Awards: Austria, Germany and Switzerland
by Jamilla Tabbara
Celebrating the legal professionals throughout Central Europe.
The Legal Teams Behind the Blake Lively–Justin Baldoni Settlement
by Grace Greer
A closer look at the legal teams and attorneys involved in the Blake Lively–Justin Baldoni litigation and its resolution.
The Best Lawyers in France 2027: Peer-Reviewed Excellence
by Jamilla Tabbara
Seventeen editions of peer trust, a growing profession and a dynamic legal market.
Rules on Gifting Money to Family: What to Know
by Bryan Driscoll
Generosity often runs ahead of paperwork. Here's how to give to loved ones without surprising the IRS, your estate plan or your relationships.
Who Can Override a Power of Attorney?
by Bryan Driscoll
A power of attorney carries real legal authority, but it isn't absolute. Here's who can step in to revoke, restrict or set it aside.
How to Get an Eviction Off Your Record
by Bryan Driscoll
Whether an eviction can be removed, sealed or corrected depends on your state, your case and where the record appears.