Ronald Chapman II

White Collar Criminal Defense Attorneys Trusted Nationwide

Ronald Chapman II

Ronald Chapman II Attorney

A Champion of Justice in Federal Defense

Ronald W. Chapman II stands out as one of the nation’s most formidable federal criminal defense attorneys, renowned for his exceptional success in high-stakes litigation. Based in Detroit but practicing nationwide, Ron has built a reputation on winning the unwinnable.

A former prosecutor and U.S. Marine Corps Judge Advocate, he combines insider understanding of the government with the tenacity of a battlefield-tested leader. His trial record is virtually unparalleled—in an era when only about 0.6% of federal defendants are acquitted, Ron has secured multiple full acquittals in just the past few years.

Those who have seen him in action agree that he is anything but ordinary: a veteran federal judge praised Ron as “one of the most talented attorneys” they had seen in 20 years on the bench. For clients facing the fight of their lives, Ron Chapman II is the ally you want in your corner.

Who is Ronald Chapman II

Ronald Chapman II, Esq., LL.M. is a nationally recognized federal criminal defense attorney with deep expertise in defending clients against complex white-collar and federal criminal charges. Known for his tenacious courtroom advocacy, Chapman has secured high-profile acquittals and favorable outcomes in major federal healthcare fraud and white-collar cases. He holds advanced legal training from Loyola University Chicago and frequently provides expert legal commentary on national news platforms. Beyond his litigation work, Chapman is an accomplished author and speaker, respected for his strategic insights on navigating federal investigations and legal process. His leadership at Chapman, Dowling & Mallek and recognition by professional peers reflect his commitment to defending individuals and professionals facing serious federal scrutiny.

Early Career and Military Service

Ron’s journey to becoming a top defense lawyer began with service and sacrifice. As a Marine Corps officer in the Global War on Terror, Captain Chapman honed elite investigative skills by leading complex probes into weapons trafficking, narcotics rings, and counterterrorism threats. Serving as a Judge Advocate (JAG), he prosecuted and defended cases within the military justice system, gaining a deep understanding of how government cases are built. This experience instilled in him a military precision and discipline that he now brings to every client’s case. These early roles—Marine officer and prosecutor—forged Ron’s comprehensive view of the justice system from both sides. He witnessed firsthand the tactics authorities use and the missteps they can make. This battlefield-to-courtroom background gave Ron an investigative savvy and strategic mindset that few attorneys can match. It’s the foundation of his ability to level the playing field for those caught in the crosshairs of a federal investigation.

After his military service, Ron returned home to Michigan with a mission: to defend individuals and professionals against the same powerful government agencies he once represented. He devoted himself to mastering health care and white-collar law, recognizing that doctors, executives, and ordinary citizens often face overwhelming odds when accused by federal authorities. To further specialize his expertise, Ron earned a Master of Laws (LL.M.) in Health Care Law from Loyola University Chicago, an advanced degree that equipped him with cutting-edge knowledge at the intersection of health care and law. Armed with this unique combination of real-world investigative experience and academic insight, Ron W. Chapman II launched into private practice, determined to protect clients with the fierceness of a Marine and the acumen of a scholar.

Record-Setting Trial Victories in High-Stakes Cases

Once in private practice, Ron quickly became a formidable advocate for clients facing federal prosecution, especially in health care fraud and controlled-substances cases. Over the past decade, he has racked up an unmatched list of trial acquittals, case dismissals, and government declinations—outcomes so extraordinary that they have garnered national attention. His results speak for themselves and often reshape the law. In June 2022, for example, Ron handed the U.S. Department of Justice a stunning defeat in what local media called “one of the biggest losses for the U.S. Attorney’s Office in the last 10 years.” In United States v. Bothra, Ron and his team defended a Detroit-area pain management physician and colleagues accused in a $550 million health care fraud and opioid distribution case—one of the largest such federal indictments in Michigan’s history. After years of litigation and a grueling multi-week trial, the jury returned not guilty verdicts across the board. Five physicians were fully acquitted on all counts, despite prosecutors alleging unlawful prescribing. This victory not only saved the defendants from life-altering prison time but also sent a powerful message that a well-prepared defense can beat even the biggest of federal cases.

Frequent High-Profile Victories

Ron’s record of courtroom triumphs is unmatched. In case after case, he has dismantled the government’s allegations and persuaded juries to see the truth behind the prosecution’s claims. Some of his landmark victories include:

Ronald Chapman II

United States v. B. (E.D. Mich. 2022)

Acquittal of five physicians in a $550 million health care fraud and drug trafficking prosecution—a case so significant that the press dubbed it the largest federal acquittal in Detroit in a decade. The doctors were accused of unlawfully prescribing 13 million opioid doses, but after Ron’s defense, all were cleared of every charge.


United States v. P. (E.D. Mich. 2022)

Acquittal of Dr. P., a pain specialist alleged to have operated a $6 million fraudulent opioid scheme. Ron demonstrated to the jury that the physician’s actions were within the bounds of legitimate medical practice, overcoming complex medical evidence and intense public scrutiny.


United States v. S. (M.D. Ga. 2023)

Mid-trial judicial dismissal of all charges against Dr. S., who was accused of unlawful prescribing that allegedly caused patient deaths. Midway through the federal opioid trial, Ron’s cross-examinations exposed such critical weaknesses in the prosecution’s case that the judge took the rare step of granting a Rule 29 motion for acquittal before the defense even had to present its case—an extraordinary outcome that underscored his ability to dismantle the government’s evidence at its weakest points.


United States v. K. (E.D. Ky. 2023)

Full acquittal of a Kentucky physician charged by the DOJ’s Appalachian Regional Prescription Opioid (ARPO) Strike Force with drug trafficking and health care fraud. Facing a specialized federal strike force, Ron achieved a complete defense victory, freeing the doctor of all charges and defeating an initiative intended to make an example of prescribers in Appalachia.


United States v. H. (E.D. Ky. 2024)

Ten-count acquittal of Dr. H., who faced a sweeping indictment for opioid distribution and fraud. Despite the DOJ devoting significant resources to the case, the jury returned a full defense verdict—reflecting Ron’s ability to humanize his client and expose prosecutorial overreach.

Nationwide Success

Ronald Chapman II Nationwide Success

These outcomes are not isolated. Ron has delivered favorable results across the country, often in jurisdictions and cases where defendants rarely prevail. He has obtained acquittals and dismissals from Michigan to Puerto Rico to West Virginia, defending physicians, pharmacists, and business owners in cases involving allegations of Medicare fraud, improper opioid prescribing, money laundering, and more. For instance, he won the acquittal of a Johns Hopkins–trained Michigan physician on over 30 drug trafficking counts in state court, and he secured the pretrial dismissal of a $5 million Medicare fraud case against an emergency room doctor in Puerto Rico. In another West Virginia case, United States v. Aggarwal, Ron earned a full acquittal for a clinic doctor accused of unlawful Suboxone prescribing. Time and again, even when facing “slam-dunk” government evidence or widespread public condemnation, Ron has proven that rigorous defense can defy the odds.

It’s little wonder that his peers and adversaries acknowledge his unmatched trial results. Federal judges have openly recognized Ron’s courtroom skills as among the very best to come before them. Thanks to this track record, prosecutors who find themselves up against Ron Chapman II know they face significant litigation risk—a fact that often leads to better plea offers or case dismissals for his clients. Simply put, Ron’s work defies the odds, giving his clients a fighting chance even in the face of daunting federal charges.

A Force for Change at the Highest Courts

Beyond his remarkable trial victories, Ron is also an influential appellate advocate who has shaped law at the national level. He has litigated cases before the United States Supreme Court and in federal Courts of Appeals spanning multiple circuits. In fact, Ron has represented clients (and their causes) in front of the highest court in the land—and won. Most notably, he was part of the team that fought for physicians’ rights in the landmark opioid prescribing case Ruan v. United States (2022). In Ruan, the Supreme Court unanimously sided with doctors, holding that the government must prove a doctor knowingly or intentionally acted unlawfully when prescribing controlled substances. This pivotal decision raised the legal standard needed to convict physicians, rejecting the vague “objective good faith” standard that some lower courts had applied. Ron’s advocacy in the case—including representing a policy group as amicus curiae to urge stronger protections for well-meaning doctors—helped secure a victory that reshaped the landscape of pain management prosecutions. Thanks to Ruan, doctors nationwide now have a powerful precedent to assert their good-faith clinical judgment without being automatically deemed criminals.

Supreme Court Advocacy


Ron followed up that success with another Supreme Court win in Naum v. United States (2022). In Naum, he represented a West Virginia physician accused of improperly prescribing Suboxone. After Ron took the case up, the U.S. Supreme Court vacated the doctor’s conviction, sending it back to be reconsidered under the new standards set by Ruan. This outcome not only saved the physician’s career and freedom but also cemented Ron’s role in shaping the interpretation of federal prescribing laws. In total, Ron has represented at least two defendants before the Supreme Court and succeeded in wiping out their convictions—a feat many attorneys only dream of. He is admitted to practice before the U.S. Supreme Court and brings to appellate advocacy the same relentless drive that he shows in trial. On the federal appellate circuit level, Ron’s expertise is equally far-reaching. He has briefed and argued cases in the Fifth, Sixth, Ninth, and Eleventh Circuits of the U.S. Courts of Appeals, often on cutting-edge issues of health care fraud, constitutional rights, and administrative law.


His ability to navigate complex legal questions across multiple jurisdictions has made him a go-to lawyer for appeals that have industry-wide implications. Whether it’s challenging a novel legal theory or defending a hard-fought trial victory on appeal, Ron is adept at crafting persuasive arguments that resonate with appellate judges. His appellate work, combined with his Supreme Court experience, means that clients not only have a trial lawyer who can win in the courtroom, but also a legal strategist who can protect those wins (or overturn losses) on appeal if necessary.

Importantly, Ron’s national practice isn’t limited to cases he personally tried. Other lawyers frequently bring him in to consult or co-counsel on high-stakes federal cases around the country, recognizing his special proficiency in federal health care and criminal matters. He is admitted to numerous U.S. District Courts and often obtains court permission to appear pro hac vice in jurisdictions coast to coast. From the Midwest to the Deep South, from the East Coast to the Caribbean, Ron has defended clients in federal courtrooms of many states. No matter where a case takes him, he approaches each venue with thorough knowledge of local rules and a respect for the community, while applying a consistent overarching strategy: outthink and outwork the government at every turn. This combination of trial prowess and appellate insight makes Ron Chapman II a true full-spectrum defense attorney.

Trusted Legal Analyst, Author, and Thought Leader

Frequently featured on national media, Ron is a respected voice breaking down high-profile federal cases. His insight and clarity have made him a trusted analyst for complex legal and policy issues.

National media channels featuring legal attorney Ronald Chapman II

Ron’s influence extends beyond the courtroom. He is a recognized legal analyst and commentator who is regularly called upon by national media to explain complex criminal cases and government investigations. His clear, insightful commentary has been featured on major outlets such as BBC News, Fox News, NewsNation, NPR, and the Scripps national television network. When headlines break about FBI raids, healthcare fraud crackdowns, or constitutional showdowns, Ron is often the expert helping the public make sense of it all. With his blend of real-world experience and scholarly knowledge, he breaks down complicated legal issues into plain language—without ever losing the nuance. Media personalities have taken notice of his expertise and engaging style. Fox News host Neil Cavuto even introduced Ron on-air as a “defense attorney extraordinaire,” underscoring his reputation as a star in his field. Whether it’s analyzing a Supreme Court decision or commenting on a high-profile trial, Ron’s media appearances demonstrate the depth of his understanding and his commitment to public education on legal matters.

Ron is also an accomplished author and educator in the legal arena. He has written extensively on criminal defense strategy and healthcare law, publishing articles and guides that share his insights with both peers and the public. In fact, he is a widely published author and speaker on federal criminal practice. His writings have appeared in professional journals and online platforms, covering topics from opioid prescription regulations to constitutional defenses in federal cases. Ron often speaks at legal conferences, medical conventions, and compliance workshops, where he teaches others how to navigate the treacherous waters of federal investigations. He serves as a faculty contributor to continuing legal education programs, helping train other lawyers in defending complex cases. Through his talks and articles, Ron generously shares the knowledge he’s gained from the front lines, reflecting his belief that a better-informed legal and medical community can prevent injustices before they happen. See Ron in the Media

Author of Two Bestsellers

Ron is the author of two acclaimed books on federal defense and investigations — essential reading for attorneys and professionals navigating the federal justice system.

Fight the feds book cover by Attorney Ronald Chapman II
truth book cover by Attorney Ronald Chapman II

In addition to articles and media commentary, Ron has authored books that solidify his status as a thought leader. Most notably, he wrote Fight the Feds: Unraveling Federal Criminal Investigations, an eye-opening book that serves as a roadmap for citizens and professionals to understand and defend against abusive federal tactics. In this Amazon-available guide, Ron pulls back the curtain on how federal agencies build cases—and how to protect one’s rights through each stage of an investigation.

He exposes the “dirtiest tricks” the government can deploy and empowers readers with knowledge to fight back. He is also the author of Truth & Persuasion: In the Digital Revolution, a work examining how influence is crafted and contested in modern society. Drawing on examples from politics, media, and courtroom trials, Ron explores the art of persuasion—a skill he has clearly mastered in front of juries—and offers insights into finding truth amid today’s information chaos. These publications have cemented Ron’s reputation as not just a litigator but a public intellectual in the realm of law and justice.
Explore Ron’s Books

Protector and Counselor


Ron’s leadership extends to the business side of healthcare law as well. He is the President of Safe Harbor Healthcare, a consulting firm that advises hospitals and medical practices on compliance and internal investigations. Through CCG Healthcare, Ron helps organizations proactively avoid running afoul of federal regulations. He and his team conduct audits, devise compliance programs, and guide clients in responding to government audits or subpoenas. In recent years, Safe Harbor Group (SHG)—which Ron formed with top healthcare experts—has prevented over $550 million in government overpayments, fines, and forfeitures for providers by catching issues early and fixing them. This preventative work aligns with Ron’s philosophy that the best win is the crisis that never occurs. It also means that when clients do call him after an investigation has begun, he often knows the administrative terrain well enough to negotiate effectively with agencies like the DEA, FBI, HHS, and FDA. Whether writing a book, appearing on television, or consulting on compliance, Ron’s goal is consistent: to protect individuals and professionals from unjust government action before, during, and after any legal battle.

A Relentless Advocate with a Human Touch


What truly distinguishes Ron Chapman II is not just his impressive credentials or wins, but how he achieves them—through meticulous preparation, genuine care for his clients, and an unwavering moral compass. Ron’s approach to defense is both scientific and humanistic. He is known for a strategic, data-driven methodology: from day one of a case, he dives into the details, analyzes evidence for every weakness, and crafts arguments fortified by facts and expert insight. He spares no effort in challenging the government’s case—filing bold motions to expose investigative missteps, rigorously cross-examining federal agents and expert witnesses, and ensuring that every legal avenue (suppression, dismissal, jury instruction, etc.) is fully explored. This exhaustive approach often leads to uncovering prosecutorial weaknesses that less dedicated attorneys might miss. Ron has a proven ability to flip the script, turning a complex case into a story of government overreach or reasonable doubt that jurors readily understand.

Hear Ron Argue a Federal Criminal Appeals Case before the Fifth Circuit
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A Life Devoted to Advocacy — Grounded in Transparency and Trust

Professionalism, Values and Ethics

At the same time, Ron never loses sight of the human story behind each case. He understands that his clients are usually upstanding professionals—doctors, executives, family people—who are terrified and at risk of losing everything. Ron takes the time to truly know his clients and their values, so he can tell their story convincingly in the courtroom. His philosophy is that a strong defense is built not only on legal arguments but also on credibility and compassion. He often says that the facts alone aren’t enough—the story must be told well. Colleagues describe Ron as approachable and down-to-earth, despite his military and courtroom toughness. Clients often find in him not just a lawyer, but a steadfast ally who treats their fight as if it were his own. This personal commitment shines through in court. Judges and juries can sense the authenticity in Ron’s advocacy—he genuinely believes in his clients and in the principle that every individual deserves justice. That sincerity, paired with his courtroom charisma, makes a powerful combination.

A Life Devoted to Advocacy

Ron’s unwavering commitment to justice is perhaps his defining trait. He has been known to work through nights and weekends, leaving no stone unturned, because he knows lives and livelihoods hang in the balance. His relentless work ethic and sharp legal instincts have produced historic victories that not only change his clients’ lives for the better but also push the law forward. He is driven by a deep sense of duty—a continuation of his Marine Corps ethos—to protect the innocent and hold the government to its burden of proof. In Ron’s view, defending a client is serving a cause greater than oneself: it’s upholding the constitutional ideals of due process and the presumption of innocence. This passion for justice has not gone unnoticed. In addition to the judge who lauded Ron’s talent, many others have offered glowing testimonials. Fellow attorneys refer cases to him with confidence. Former clients send grateful referrals, noting how Ron saved their careers or kept their families together. Even adversaries respect him; while they may not enjoy losing, federal prosecutors acknowledge that when Ron is on the defense, they have to bring their A-game.

Transparency and Agency is a Key to Client Comfort

Perhaps what most inspires trust in Ron Chapman II is that he sees his role not just as a lawyer, but as a protector and counselor in his clients’ darkest hours. He is transparent with clients about their options, treating them with honesty and empathy at every step. Those who come to Ron fearful and overwhelmed leave his office feeling heard, supported, and better equipped to face the challenge ahead. They know that no matter how powerful the opponent—be it a U.S. Attorney or a federal agency—Ron will fight tirelessly on their behalf. His presence in the courtroom alone gives clients confidence; he exudes a calm, commanding demeanor built on preparation and truth. This presence has even been described as “the highest level of defense strategy available” for those facing federal prosecution. It’s a presence that brings precision, credibility, and an unmatched track record to the table—exactly what a client needs when everything is at stake.

Trust Through Results and Integrity

Results matter—and Ron delivers. But equally important is the integrity and trust that underpin those outcomes. Ron Chapman II has earned the trust of physicians, executives, and professionals across the country by consistently doing what he promises: providing the strongest defense possible, grounded in hard work and ethical advocacy. He understands that hiring a lawyer is often an act of faith for clients, and he honors that faith by being accessible and responsive. Ron personally returns calls, keeps clients informed, and involves them in key decisions. He knows that a federal case can be a marathon of stress and uncertainty, so he makes it a point to stand by his clients every step of the way—as a steady guide and fierce guardian of their rights.

From securing record-breaking acquittals to influencing landmark Supreme Court rulings, Ronald W. Chapman II’s career has been defined by excellence and dedication. He has proven that no case is too complex, no opponent too powerful, and no cause too difficult if approached with intellect and heart. For Ron, justice is personal. It’s the Marine in him—leave no one behind. It’s the lawyer in him—every client deserves the best defense. And it’s the human in him—a profound empathy for those caught in circumstances they never imagined. This rare blend of qualities is why so many clients, when asked who they trust with their freedom, have one answer: “Call Ron Chapman.”

Attorney Ronald Chapman II Office

Federal Criminal Defense Case Results


Countless Quiet Resolutions

188 Federal Acquittals

Federal cases successfully defended — often before any public filing or charge.

Federal case result dismissal

United States v. S. K.

Court dismissed most counts in superseding indictment pre‑trial; “sex‑act” counts and over‑aggregated FDA counts tossed; limited FDA/fraud counts remained.

W.D. Tenn. 2025 Majority Dismissed

Federal case result acquittal

United States v. K. H.

Jury acquitted 6 distribution counts; hung on 2; prosecution later dismissed remaining count

E.D. Ky. 2024 6 Acquittals

Led By Federal Defense Attorney Ronald Chapman II

Ron’s meticulous approach, combined with a relentless commitment to his clients, has led to precedent-setting victories that have reshaped federal healthcare fraud and white-collar criminal defense.

Leading White Collar & Federal Defense Attorney

Leading White Collar & Federal Defense Attorney

Record-setting trial victories in high-stakes federal cases have earned Ron national recognition among peers and clients alike. His results in complex white collar investigations demonstrate strategic mastery and courtroom precision. Learn more about Ronald Chapman II

Trusted Legal Analyst & Thought Leader

Trusted Legal Analyst & Thought Leader

Frequently featured on national media, Ron is a respected voice breaking down high-profile federal cases. His insight and clarity have made him a trusted analyst for complex legal and policy issues. See Ronald in the Media

Author of Two Legal Bestsellers

Author of Two Bestsellers

Ron is the author of two acclaimed books on federal defense and investigations — essential reading for attorneys and professionals navigating the federal justice system. Explore Ronald's Books

Ronald Chapman II founder of Chapman, Dowling & Mallek

Benefits for Our Federal Defense Clients

Federal charges demand a defense team built for high-stakes cases. Individuals and businesses nationwide rely on Chapman, Dowling & Mallek because our structure, experience, and focus create direct advantages for every client we represent.

1 National-Level Federal Case Experience

You’re defended by attorneys who understand how federal cases unfold in multiple jurisdictions, giving you broader strategic protection and a defense built on real-world results.

2 Focus on Federal & White Collar Defense

You receive representation from attorneys who live and breathe federal law, giving you a stronger, more focused defense than general criminal defense firms can provide.

3 Strategic Advantage with Former Prosecutors

You get a defense strategy informed by the very people who used to build and prosecute these cases, giving you a real edge in negotiations, investigations, and trial.

4 Rapid, Private, No-Cost Consultations

You’re not left wondering what comes next, you get answers and direction right away that help you in any state, which is crucial when dealing with the federal government nationwide.

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Headquartered in Detroit, Michigan

Serving Clients Nationwide.

Chapman, Dowling & Mallek is headquartered in Detroit, Michigan and represents clients in federal investigations and criminal matters across the United States. Our attorneys handle complex federal cases nationwide while maintaining offices in Michigan and other states.

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