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John B. Williams, III provides enforcement and litigation counsel to financial services companies and individuals navigating internal investigations, government investigations, and complex civil litigation, with a particular emphasis on consumer finance matters.

As Counsel in Buckley Sandler LLP’s Washington, DC office, Mr. Williams has represented clients before the Department of Justice (DOJ), Consumer Financial Protection Bureau (CFPB), Federal Housing Finance Agency (FHFA), Department of Housing and Urban Development (HUD), New York Department of Financial Services (NYDFS), and other state regulators, including state attorneys general. He is particularly focused on the compliance issues surrounding government-insured mortgages and student lending, and works with his clients to conduct compliance and consumer protection reviews to mitigate risk.

Mr. Williams has extensive experience assisting clients in matters involving complex electronic discovery issues, such as large-scale document collection, developing effective document retention policies, and utilizing cutting-edge technology (including technology-assisted review) to reduce review and production costs.

His notable work includes:

  • Defending financial institutions against litigation brought under the False Claims Act (FCA)
  • Representing a client in multiple investigations brought by the DOJ and Department of Housing and Urban Development Office of Inspector General (HUD-OIG) regarding lender-placed insurance, FCA liability, and down-payment assistance programs
  • Representing a client in ongoing complex civil litigation and a related DOJ Foreign Corrupt Practices Act (FCPA) investigation
  • Assisting institutions across the breadth of their investigations needs, from internal investigations to large-scale government investigations

Mr. Williams has an active pro bono practice and has represented clients before the U.S. Parole Commission, has handled multiple matters with the Washington Lawyers’ Committee, and is a founding member of the DC Diaper Bank, a local nonprofit where he currently sits as a board member.

Prior to joining Buckley Sandler, Mr. Williams was a litigation associate at Venable LLP, where he represented clients in complex commercial litigation and arbitration. 

Mr. Williams received his J.D. from the American University, Washington College of Law (summa cum laude, Order of the Coif) in 2007. During law school, he served as a clerk in the Office of the Public Defender in Montgomery County, Maryland. Mr. Williams received his B.A. from Vanderbilt University (magna cum laude) in 2004.

In The News

Articles & Special Alerts

  • Key Changes in E-Discovery

    On December 1, 2015, proposed amendments to the Federal Rules of Civil Procedure (FRCP) (which were last amended in 2006) became effective, as they were not rejected or modified by congressional legislation. The now effective amendments take into account not only the more “exotic” sources of...

    John B. Williams, III, David Rivera


Awards and Recognitions

Awards & Recognitions

  • Buckley Sandler 2017 Distinguished Lawyer Award for Exemplary Pro Bono Service
  • Super Lawyers 2016 Rising Star: Banking, Consumer Law, E-Discovery
  • Super Lawyers 2015 Rising Star: Banking
  • Super Lawyers 2014 Rising Star: Banking


  • J.D., American University, 2007 (summa cum laude, Order of the Coif)
  • B.A., Vanderbilt University, 2004


  • District of Columbia
  • Maryland

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