Jim is a nationally recognized trial lawyer focusing on high-profile criminal, civil and regulatory matters. Through his use of creative and aggressive legal strategies, Jim has broken new ground in a wide range of successful and significant cases of national and global importance. He has prevailed in a broad range of criminal, civil and administrative matters, representing both private defendants and plaintiffs as well as government agencies. In many of his engagements, Jim replaced large law firms or nationally renowned litigators, succeeding where others failed.
Jim began his career at the Department of Justice (DOJ) in the U.S. Attorney’s Office of the Eastern District of New York (EDNY). As a federal prosecutor, he helped break up a human trafficking ring before moving to the organized crime unit where he worked in close collaboration with the Federal Bureau of Investigation (FBI), Drug Enforcement Administration (DEA), New York Police Department (NYPD) and other agencies to indict and convict hundreds of mob members including the bosses, captains and soldiers of the Bonanno, Colombo, Gambino, Genovese and Lucchese crime families. He ascended to lead the DOJ’s first Computer Crimes and Intellectual Property unit.
Following his public service, Jim led the white collar practices at two major international law firms, spearheading successful legal strategies for internal corporate investigations in contexts including antitrust, foreign bribery, banking, securities and accounting fraud, procurement and billing fraud, embezzlement, and market manipulation.
He accomplished these victories while championing good government work to bring a substantial and welcome change to people’s lives. His success was the catalyst for his decision to found WMHW, with two other distinguished prosecutors. The firm has flourished, growing in numbers from six to over 50 professionals in four years.
Jim’s work has garnered many accolades, including the DOJ Director’s Award for Superior Performance and the Federal Law Enforcement Foundation’s Prosecutor of the Year award. Chambers USA calls him “a tireless, dogged advocate for his clients,” and The Financial Times ranked him as one of the “Top 10 Innovative Lawyers in North America.” New York City Mayor Bill de Blasio stated, “If there is magic in the law, Jim Walden has found it.”
His work is depicted on screen in the Oscar®-winning documentary film “Icarus,” Aaron Sorkin’s “Molly’s Game,” the National Geographic documentary series “Inside the American Mob,” and the Vanity Fair documentary “The Disco Inferno.”
Jim served as a law clerk for the Honorable Anthony J. Scirica, U.S. Judge, Court of Appeals, Third Circuit. He is a cum laude graduate of Hamilton College and magna cum laude graduate of Temple University School of Law, where he served as a law review editor.
Show More +Jim has a combination of the creativity and practicality. His level of sophistication and commercial vision is the highest.
2024 Chambers USA
Experience
Jim has represented a diverse array of high-profile corporate executives in complex matters intersecting with federal and international investigations and public policy. In the aftermath of the 2008 financial crisis, he led the defense of the former CEO of AIG Financial Products Division, Joseph Cassano, proving to the DOJ and the Securities and Exchange Commission that the CEO was factually innocent, leading both agencies to drop their investigations. A few examples of Jim’s recent victories demonstrate his prowess as a master of the “turn-around:”
Jim was engaged to represent the former President of the nation’s largest diesel fuel retailer, Pilot Flying J, in a high-profile fraud case after the client, Mark Hazelwood, was convicted at trial despite the efforts of a nationally renowned litigator. Working with lawyers on WMHW’s deep bench, including Georgia Winston, Veronica Wayner, Dan Chirlin, Christopher Dioguardi and Cheryl Fakhry, as well as A-list lawyers from other firms, Jim set upon the ambitious goals of reversing Mark’s wrongful conviction and then proving his innocence. The strategy worked. After the 6th Circuit reversed Mark’s conviction, Jim and the team aggressively investigated the government’s evidence, piece-by-piece, demonstrating its inherent unreliability. Swimming against the stream of inherited defense wisdom to “keep your powder dry,” Jim instead captained a 7-hour presentation to DOJ, exposing the core flaws in its evidence and the unreliability of its witnesses. When the local U.S. Attorney refused to act, Jim and the team took the fight to Main Justice, making a compelling case that the flaws in the investigation and prosecution merited a complete dismissal. The strategy succeeded. On July 27, 2021, all charges against Mark and his co-defendants were dismissed.
Mark and his wife, Joanne, had this to say: “When we met Jim, his first words were ‘we have to get the FACTS — not DOJ’s facts, but the true facts.’ He is the most focused, diligent, and intelligent attorney we have ever met, leaving no stone unturned. With his team, he put together a defense like no other. No ego or pride in authorship. Jim had one goal and one goal only: DISMISSAL. When everyone doubted him, he stayed the course and got the right result: dismissal with prejudice. Joanne and I cannot express in words the gratitude for Jim and his team. They believed in me and my innocence, and they proved it.”
Jim was engaged to represent a founding member and 50-50 co-owner of a private-equity firm after the managing member accused him of compliance violations and sought his forced removal from the firm. Jim inherited the case from a well-known litigation firm, with a large international presence. Believing in his client’s innocence, Jim, working with Daniel Chirlin, Veronica Wayner, and Dan Cohen, embarked on an aggressive investigation to prove the accusations were a bogus subterfuge and pretext for the managing member to wrest total control of the firm. The strategy worked, as Jim and the team uncovered critical evidence of the ploy, and also proved the managing member was himself guilty of spoliation of evidence. The matter resulted in a hefty pay-out, allowing the client ample capital to fund his own new venture.
Jim inherited a high-profile civil case from an international law firm at a critical stage: a preliminary injunction had been entered against the clients, Artemus USA LLC and its managing member, Asher Edelman, tying up millions of dollars in assets needed to operate the business. Working with WMHW’s Georgia Winston, Dan Cohen, and Tricia Lyons, Jim succeeded in reversing the injunction, finding evidence to show that many of the core allegations made against the client were false, and proving that the plaintiff had withheld critical documents and engaged in other discovery violations. On March 15, 2021, Jim, with efforts from the team, delivered the clients’ ultimate goal: dismissal of the plaintiff’s case with prejudice. In a civil case, it is difficult to imagine a more dramatic turnaround.
Edelman noted, “WMHW took on this case and cured a morass of previous legal missteps. The firm drove home the equity and the legal complexities of the case and did a superb job of winning a well-deserved victory.”
New Jersey Governor Phil Murphy appointed Jim as Special Counsel to the Task Force on EDA Tax Incentives to investigate the award of the state’s multibillion-dollar tax incentive program funds. Working with partners Milt Williams and Georgia Winston, the investigation exposed self-dealing in the drafting of legislation, uncovered illegal lobbying, and resulted in over $500 million in tax awards that were either subject to suspension or termination actions or voluntarily terminated by claimants. The investigation, which Jim and the team completed within 18 months, involved the simultaneous investigation of the Economic Development Authority itself and over 400 corporate applicants.
Mere months before trial was to begin, Jim inherited a high-profile case from an AmLaw100 firm, representing William Anderson, CEO executive of a faith-based media company Christian Media, who was accused of fra…
Recognitions
National Practice Area Star and Local Litigation Star, General Commercial Litigation, Competition/Antitrust, Dispute Resolution, and White Collar Crime, Benchmark Litigation (2018-2026)
500 Leading Litigators in America, Lawdragon (2024, 2025)
Best Lawyer, Criminal Defense: White-Collar, U.S. News-Best Lawyers in America (2011-2025) [see selection methodology here]
Ranked in “Litigation: White-Collar Crime & Government Investigations — New York,” Chambers and Partners USA (2018-2024)
Hall of Fame, Lawdragon (inducted 2024)
Law Power 100, City & State (2019 – 2023)
500 Leading Lawyers in America, Lawdragon (2018-2023)
Northeast Trailblazer, The American Lawyer (2021 and 2022)
Sports, Gaming & Entertainment Trailblazer, The National Law Journal (2021)
Innovation Award, New York Law Journal (2020)
Litigation Trailblazer, The National Law Journal (2020)
Top 100, The National Trial Lawyers (2020-2023)
Law Power 50, NJBIZ (2020)
Top 10 Legal Innovator, Financial Times (2019)
Insider 100: Policymaker, Insider NJ (2019)
Distinguished Leader, New York Law Journal (2017)
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