About Us

DeClercq Law Group is a legal practice with extensive experience in business and commercial law, estate planning, family law, and civil litigation.

The firm was founded in 2011 by William DeClercq to serve Pasadena and the Southern California area. The firm has a proud history of providing personalized legal advice and guidance to its clients.

Mr. DeClercq uses his experience and training at one of the world's largest and most prestigious law firms as well as regional powerhouse firms to deliver unparalleled service. By taking advantage of technology and low overhead costs, and by limiting our work to the key services necessary, DeClercq Law Group delivers results at a fraction of the rates demanded by other firms.

Our Team


  • Tracy Wong, Esq., Law Offices of Thomas Carter
  • Ramin Rabeian, Esq., Beverly Hills Bike Law, APC
  • Eugene S. Alkana, Esq., Law Offices of Eugene Alkana
  • Russell M. Frandsen, Esq., The Business Legal Group
  • Brett R. Strauss, Esq., NEXT Legal Advice
  • Samuel Obi Ogbogu, Esq., The Law Offices of Samuel O. Ogbogu
  • Brenda Harrison Young, Esq., Law Offices of Brenda Harrison Young

William B. DeClercq, Esq.


William DeClercq

I am an experienced attorney handling litigation and alternative dispute resolution as well as business formation and compliance advice, including employment matters. Litigation matters have included complex commercial disputes, partnership disputes, employment litigation, and real property actions.

As a civil litigator and business advisor, I aim to be a peacemaker with a creative “aggressive but reasonable” approach that focuses on achieving the client’s desired objectives, always considering the costs and benefits of any approach, while maintaining a healthy sense of humor.

I seek to treat every client's challenges with equal vigor and commitment, no matter the size, and I bring a unique personal approach to every valued client by emphasizing practical, cost-effective, tailored solutions to challenging legal problems. In that past I have represented a range of clients including small and large businesses, entrepreneurs, private individuals and Fortune 500 companies, large banking and financial services companies, real estate investment trusts, federal government agencies, pharmaceutical companies, healthcare agencies, logistics firms, manufacturers, and retailers.

I am actively involved in pro bono and public interest representation, including adoptions, immigration, and education advocacy.

I find joy in my work as a writer, actor and comic. I have written, produced and performed in a full-length legal improvisation and sketch comedy show at the Ice House Comedy Club in Pasadena, called “Law & Disorder – LIVE” and the sketch comedy group Mondays @ 7 and our internet comedy show "You're on Mute." I am the host of a legal/comedy podcast, “Laying Down the Law,” which combines real legal cases with improvised comedy and interviews.

Most important, I am happily married to Nicole A Tetreault, PhD, a neuroscientist, acclaimed author, internationally-sought speaker, and meditation teacher who inspires me daily to be a better human.

Together we keep busy raising our son and miniature Australian Shepherd.


  • J.D. — University of California, Los Angeles - School of Law, 2005, with honors
  • California State University-East Bay, Teaching Credential, Education, 2001
  • Whittier College, B.A. - cum laude, Theatre Arts/Philosophy, 1997, cum laude

Areas of Practice

  • Business Litigation and Dispute Resolution
  • Corporate Formation and Compliance
  • Employment Compliance and Litigation
  • Real Estate Agreements and Litigation

Bar Admissions

  • Supreme Court of the United States
  • Ninth Circuit Court of Appeals
  • Supreme Court of California
  • California Courts of Appeal
  • U.S. District Court, Southern District of California
  • U.S. District Court, Northern District of California
  • U.S. District Court, Eastern District of California
  • U.S. District Court, Central District of California
  • U.S. Bankruptcy Court, Southern District of California
  • U.S. Bankruptcy Court, Central District of California


  • Selected to Super Lawyers
  • Super Lawyers Rising Star
  • Wiley W. Manuel Award for Pro Bono Legal Service
  • John Greenleaf Whittier Scholar - full tuition scholarship to Whittier College

Professional and Civic Affiliations

  • Special Counsel to Board of Directors of Gifted Research & Outreach, Inc.
  • Boy Scout Leader - Assistant Scoutmaster, Troop 351, San Marino
  • Focus Out Group Leader, Arcadia, CA
  • AYSO Regional Referee
  • Knights of Columbus Council 1174 - First Degree Knight

Laying Down the Law podcast with Billy DeClercq, Esq.

On Laying Down the Law, Billy DeClercq has combined his legal acumen with serious comedic skills. In each episode, Billy invites comedians and improvisers on the show to discuss real legal cases and concepts. He helps his hilarious guests dissect the case, then they all throw it in the improv blender to create comedic magic in completely original scenes. Then, Billy throws off his gloves and goes for the jugular by asking heavyweight questions to find out what makes his guests tick.