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Byron J. McLain

Government Enforcement Lawyer and Former AUSA

Byron J. McLain's profile photo
LocationLos AngelesCalifornia, United States
Current roleGovernment Enforcement Defense & Investigations Partner (Equity Partner)Foley & Lardner LLP · since Nov 2018
Government service6yrsU.S. Attorney’s Office

About

Byron McLain is a Los Angeles-based litigator and white-collar criminal defense lawyer skilled at helping clients avoid investigations and prosecutions or discretely minimizing the negative impact when they do occur. He is a partner in the firm’s Government Enforcement Defense & Investigations, and Securities Enforcement & Litigation Practices, as well as a member of the Environmental, Social, and Corporate Governance (ESG) Team.

Byron investigates, litigates, and tries complex criminal and civil cases, including those involving government investigations. He also conducts corporate internal investigations, often successfully persuading the government not to pursue investigations of his clients. He is widely recognized for his ability to address clients’ concerns quickly and efficiently, providing concrete solutions addressing not only the legal issues involved, but also the potential impact on a client’s business. He is strongly adept at articulating complex issues in layman’s terms across industries and at humanizing corporate clients, so they are relatable as witnesses during interviews and at trial.

Byron helped me and my fellow Board members navigate some very tricky and sensitive legal issues. I was so impressed with Byron’s ability to relate personally to the employees at our company during meetings and to identify the key issues quickly for analysis. He was very professional and sensitive to protecting our core business interests.

– Bill Nance, Board Chairman of the Audit and Finance, Compensation, and Nominating and Governance Committees, Comstock Mining

As a former federal prosecutor in Los Angeles, Byron has leveraged his extensive knowledge and broad network of relationships to achieve the best results for his clients in a very discrete manner. He also advises clients concerning the distribution and marketing of non-fungible tokens (NFTs) and cryptocurrencies to best avoid these assets from being construed as securities by the Securities and Exchange Commission (SEC). He works closely with the firm’s Health Care, Cannabis, and Sports & Entertainment Industry Teams, and serves as co-chair of the Racial Justice and Equity Practice Group.

Byron has leveraged his extensive knowledge and broad network of relationships to achieve the best results for me and my company. He is also always available whenever I need to discuss legal issues with him at any point of time. Byron also is strongly adept at articulating complex issues in layman’s terms across industries and at understanding the business impact of the legal advice that he provides. Byron is a phenomenal attorney and I recommend him to all of my business colleagues for legal representation.

– Alexi Solit, Managing Partner, Metamatic

Professional Experience

Byron previously served as deputy chief of the General Crimes Section in the U.S. Attorney’s office (USAO) for the Central District of California, where he co-supervised a training section of more than 50 assistant U.S. attorneys. He also served as a prosecutor in the Major Frauds Section of the Criminal Division, where he investigated and prosecuted white collar crime. As a fraud lawyer at the USAO Los Angeles location, he has tried many criminal cases to jury verdict and argued cases before the Ninth U.S. Circuit Court of Appeals. His experience includes navigating criminal and civil allegations concerning health care fraud, securities law violations, false claims, kickbacks, wire and mail fraud, tax conspiracy fraud, movie investment fraud, obstruction of justice, marijuana/cannabis distribution, and Paycheck Protection Program (PPP) loan fraud.

Byron has extensive knowledge of the health care claims and reimbursement industry. He served as the USAO’s health care fraud coordinator, where he evaluated health care-related False Claim Act (FCA) civil claims and determined whether criminal investigations should be initiated. He coordinated with other assistant U.S. attorneys and investigative agencies to identify the USAO’s top priority cases in home health care, hospice, prescription drugs, and skilled nursing facility care. He also worked with the U.S. Department of Justice’s local Medicare Fraud Strike Force and assisted with the coordination and organization of its annual national sweep of health care criminal cases.

When our business was unexpectedly faced with a major legal issue, I immediately reached out to Byron for his legal acumen. He was great! He is a very polished, calm, and confident lawyer who helped my team navigate tricky legal issues quickly and efficiently.

– Cynthia Patton, General Counsel, Verily Life Sciences

Roles

Nov 2018–Present
Current role

Government Enforcement Defense & Investigations Partner (Equity Partner)

Foley & Lardner LLP

Los Angeles, California

Civil LitigationInvestigationsWhite Collar Crime

Litigation partner in the Government Enforcement Defense & Investigations Practice Group (i.e. White Collar Defense); also a member of the firm's Securities & Litigation Practice Group and Health Care Industry Team.

Jul 2012–Nov 2018
Former role

Deputy Chief

U.S. Attorney’s Office

(appointed)California Central District

Planning, Policy, StrategyManagementAdministrativePublic Relations

DEPUTY CHIEF
Supervise team of over 25 AUSAs, guide trial strategy and review work product;
Approve all plea agreements for supervisees before such agreements are offered to defendants;
Lead training sessions at the USAO on best practices for drafting plea agreements and making effective sentencing arguments;
Assist in hiring and training of new AUSAs;

ASSISTANT UNITED STATES ATTORNEY
Tried eight jury trials to verdict and negotiated plea agreements in numerous other criminal matters, involving health care fraud, cyber-related crimes, securities law violations, false claims, kickbacks, wire fraud, mail fraud, aggravated identity theft, tax conspiracy fraud, movie investment fraud, obstruction of justice, and illegal immigration;
Prepared and argued appeals before the Ninth Circuit Court of Appeals;
Served as the USAO's Healthcare Fraud Coordinator;
Interviewed over 100 witnesses in criminal prosecutions;
Represented the United States government in district court in over 100 different matters.

Sep 2007–Jul 2012
Former role

Associate

Skadden, Arps, Slate, Meagher & Flom LLP and Affiliates

Los Angeles, California

Civil Litigation

Drafted briefs in matters before the United States Supreme Court, Ninth Circuit Court of Appeals, and district courts;
Deposed over 10 witnesses in civil litigation matters;
Negotiated settlement agreement before magistrate judge in civil litigation as lead attorney;
Drafted and argued motions in limine before district court judge;
Researched and analyzed Foreign Corrupt Practices Act issues to prepare witnesses for DOJ proffer interviews;
Served as direct client contact on several litigation and corporate matters, including presentations to board of directors;
Coordinated document review teams across multiple offices in complex criminal and civil matters;
Served as co-chair of the Diversity Group and member of Professional Development Committees.

Representative matters

Health Care

March 2025

Represented a medical provider as a potential victim in a multifaceted money laundering and fraud scheme investigation involving the sale of alleged counterfeit medical supplies during the COVID-19 pandemic. Represented a hospital as a potential witness in an investigation of a third-party company concerning its investment in multiple clinical trials. Conducted an internal investigation for a health care company regarding federal criminal allegations of a PPP loan fraud scheme by a former employee and the potential misappropriation of company resources. Represented a health care services company in a qui tam investigation and avoided any recommendation of civil or criminal charges from the U.S. Department of HHS-OIG to the U.S. Attorney’s Office in Chicago. Represented a health care provider in a criminal False Claims Act matter relating to billing and claims for alleged medically non-reimbursable treatment.

Cryptocurrency and NFTs

March 2025

Represented a client defending itself against a Securities and Exchange investigation related to the production, marketing, and distribution of certain NFTs. Represented a client that seeks to create a NFT exchange based outside the United States and to avoid the jurisdiction of the Securities and Exchange Commission.

Recognition

Honors

Named DEIA Visionary

Los Angeles Times

January 2023

Attorney of the Year

California Lawyer

January 2023

Top 100 Lawyers List

Los Angeles Business Journal

January 2022

Top Minority Attorney in Los Angeles

Los Angeles Business Journal

January 2020

White Collar Lawyer of the Year Award

Century City Bar Association

January 2020

Publications & speeches

Employee charged with COVID relief fraud? Questions for GCs

Daily Journal

March 2021

Co-author

Proving Intended Loss in Criminal Health Care Cases

Daily Journal

March 2019

Co-author

Breaking Language Barriers with Generative AI: How Foley & Lardner Conducted Multilingual Document Review with Relativity aiR for Review

Foley Insights

March 2025

Co-author

DOJ Warns White Collar Bar it is Coming After Individuals

Foley Insights

March 2022

Co-author

Meet and Greet Panel Discussion with U.S. Attorney E. Martin Estrada and Federal Public Defender Cuauhtemoc

November 2022

Moderator

Regulatory Implications in the NFT and the Metaverse Spaces

Beverly Hills Bar Association webinar

March 2022

Panelist

NIL and the Shifting Legal Landscape of College Sports

Foley & Lardner Webinar

November 2021

Moderator

Health Care Fraud Enforcement, Defense, and Voluntary Disclosure

ABA White Collar Institute Conference

March 2025

Speaker