Jeff Neiman is a Florida-based attorney known for his work in white-collar criminal defense, tax disputes, and complex federal litigation. With experience as both a federal prosecutor and a private defense lawyer, he has developed a career centered on high-stakes legal matters involving individuals, executives, and businesses.
Before entering private practice, Neiman spent nearly a decade working within the U.S. Department of Justice. His government service included criminal tax prosecutions and work on significant financial investigations, giving him firsthand knowledge of how federal authorities build and pursue cases. Today, he is a founding partner of Neiman Mays Floch & Almeida, PLLC, a Fort Lauderdale law firm that handles complex legal disputes and government investigations.
Who Is Jeff Neiman?
Jeffrey Adam Neiman, professionally known as Jeff Neiman, is an American attorney whose practice focuses on white-collar criminal defense, tax controversy, and government investigations. He is based in South Florida and has worked on matters involving alleged financial fraud, offshore tax issues, and other complex legal disputes.
Neiman’s career stands out because he has worked on both sides of federal criminal litigation. His early years as a prosecutor allowed him to understand government investigative methods, while his later work in private practice has involved defending clients facing scrutiny from federal agencies.
Jeff Neiman’s Facts
| Fact | Details |
| Name | Jeff Neiman |
| Profession | Attorney and former federal prosecutor |
| Nationality | American |
| Based In | Fort Lauderdale, Florida |
| Current Law Firm | Neiman Mays Floch & Almeida, PLLC (NMFA Law) |
| Primary Practice Areas | White-collar criminal defense, tax controversy, federal investigations, and complex litigation |
| Undergraduate Education | University of Florida, Bachelor of Science in Finance, with honors |
| Law School | University of Florida Levin College of Law |
| Legal Qualification | Juris Doctor, with honors |
| Florida Bar Admission | April 17, 2002 |
| Federal Government Service | U.S. Department of Justice and U.S. Attorney’s Office for the Southern District of Florida |
| Notable Federal Case | UBS Swiss-bank tax-evasion investigation |
| Other Notable Prosecution | Fraud case involving developers Mauricio and Leon Cohen |
| Major Legal Honors | Attorney General’s John Marshall Award and IRS Commissioner’s Award |
| Notable Defense Achievement | Full acquittal for an attorney charged with federal wire fraud |
| Notable Tax Case | Jury verdict clearing a client of multimillion-dollar tax penalties |
| Professional Recognition | Chambers USA, Best Lawyers, and Super Lawyers |
| Additional Distinction | Lawdragon 500 Leading Global Tax Lawyers, listed in the supplied 2026 background |
Early Life and Education
Neiman was born and raised in South Florida. He pursued higher education at the University of Florida, where he earned a bachelor’s degree in finance with honors. He later attended the university’s Levin College of Law and completed his Juris Doctor degree with honors.
His academic achievements included induction into the Order of the Coif, an honor recognizing strong academic performance in legal education. His finance background also provided a useful foundation for understanding business transactions, financial reporting, and the economic issues that frequently arise in tax and white-collar criminal cases.
Neiman was admitted to the Florida Bar in 2002. His legal education and professional qualifications prepared him for a career involving federal investigations, financial misconduct allegations, and complex litigation.
Federal Prosecutor Career
Neiman began his legal career with the U.S. Department of Justice, serving in its Criminal Tax Division in Washington, D.C. He spent approximately six years in the division, working on matters involving tax evasion, financial fraud, money laundering, and related offenses.
The Criminal Tax Division handles cases that require detailed examinations of financial transactions and tax obligations. Prosecutors in this area often work with investigators and financial specialists to determine whether conduct violates federal law.
One of the most notable matters associated with Neiman’s government service was the UBS Swiss-bank tax-evasion investigation. The broader case concerned offshore accounts and efforts by American taxpayers to conceal assets from U.S. tax authorities. Neiman’s work included prosecution connected to Swiss banker and whistleblower Bradley Birkenfeld and UBS clients.
His contributions to federal litigation earned professional recognition, including the Attorney General’s John Marshall Award and the IRS Commissioner’s Award for outstanding litigation. These honors reflected his work in significant tax-related enforcement matters.
In 2008, Neiman moved to the U.S. Attorney’s Office for the Southern District of Florida, where he served as an Assistant U.S. Attorney in Fort Lauderdale. His responsibilities included prosecuting white-collar offenses and other federal crimes.
Among the cases associated with this period was the prosecution of developers Mauricio and Leon Cohen, a father-and-son pair convicted in a multimillion-dollar fraud case in 2010. The experience further strengthened Neiman’s background in presenting complex financial evidence and handling demanding federal trials.
By 2011, he had accumulated approximately nine years of federal legal experience.
Transition to Private Practice
In 2011, Neiman left government service to establish his own law practice in Fort Lauderdale. His decision marked a shift from prosecuting alleged financial misconduct to representing people and organizations facing criminal investigations and legal disputes.
His early private practice focused on white-collar criminal defense, tax matters, and related litigation. Over time, he worked with other attorneys in boutique law firms, including Marcus Neiman & Rashbaum and the later Marcus Rashbaum Pineiro & Meyers firm.
These professional partnerships allowed him to continue handling sophisticated cases while developing a broader private-sector practice. His background as a former federal prosecutor became an important part of his professional profile, particularly for clients dealing with government inquiries or allegations of financial wrongdoing.
In 2023, Neiman co-founded Neiman Mays Floch & Almeida, PLLC, commonly known as NMFA Law. Based in Fort Lauderdale, the firm handles complex litigation, white-collar defense, tax controversies, government investigations, and crisis management.
As a founding partner, Neiman continues to work on matters that may involve substantial financial exposure, reputational concerns, and complicated legal questions.
Major Cases and Legal Achievements
Neiman’s career includes high-profile prosecutions and private-practice victories. His experience with financial crime cases has given him familiarity with the legal and evidentiary challenges that arise when prosecutors investigate alleged fraud or tax violations.
One notable private-practice result involved obtaining a full acquittal for a client who was an attorney charged with wire fraud. An acquittal means the defendant was found not guilty of the charges at trial.
A Texaco heiress facing multimillion-dollar tax penalties related to alleged failures to file Foreign Bank Account Reports, commonly known as FBARs. Neiman’s defense persuaded a jury that the client’s omissions were not willful, resulting in a verdict clearing her of the disputed penalties.
These cases illustrate the importance of intent in certain financial and tax disputes. A reporting failure or financial irregularity does not automatically establish that a person deliberately violated the law. The specific facts, applicable legal standards, and available evidence can make a substantial difference.
Neiman also handles matters that may be resolved before trial. Negotiated outcomes, decisions not to pursue charges, and confidential settlements can be important in sensitive investigations, although details of such matters are not always publicly available.
Awards and Professional Recognition
Neiman has received recognition from legal organizations and professional publications for his work in white-collar defense and tax law.
His federal service brought honors from the Department of Justice and the IRS. In private practice, he has been recognized by publications and professional directories, including Chambers USA, Best Lawyers in America, and Super Lawyers.
He has also been named to Lawdragon’s 500 Leading Global Tax Lawyers list for 2026, according to the supplied professional background. Such distinctions reflect professional standing within specialized legal fields, although rankings and awards do not guarantee a particular outcome in an individual case.
Jeff Neiman’s Current Role
Neiman serves as a founding partner of Neiman Mays Floch & Almeida, PLLC, in Fort Lauderdale, Florida. His practice focuses on white-collar criminal defense, tax controversy, complex litigation, and government investigations.
His professional background is particularly relevant to clients facing allegations that require a detailed understanding of federal enforcement procedures. Experience in both prosecution and defense can help an attorney evaluate evidence, anticipate legal arguments, and identify potential weaknesses in a case.
Neiman is admitted to practice in Florida and has federal court admissions, including in Florida’s federal districts, as well as the U.S. Tax Court, according to the supplied biographical information. His official law firm profile and Florida Bar record are appropriate sources for confirming current professional details.
Jeff Neiman’s Career Timeline
Neiman’s career reflects a gradual progression from legal education to federal prosecution and then private practice.
- 2002: Admitted to the Florida Bar and began his federal legal career.
- 2002–2008: Worked in the U.S. Department of Justice’s Criminal Tax Division in Washington, D.C.
- 2008–2011: Served as an Assistant U.S. Attorney in South Florida.
- 2011: Left government service and opened his own law practice in Fort Lauderdale.
- Following years: Worked with boutique law firms specializing in litigation and white-collar criminal defense.
- 2023: Co-founded Neiman Mays Floch & Almeida, PLLC.
- 2026: Continues his legal practice as a founding partner of NMFA Law, according to the supplied background.
Conclusion
Jeff Neiman has built his legal career around some of the most demanding areas of American law: federal criminal defense, tax disputes, and financial investigations. His years as a federal prosecutor provided experience in major enforcement cases, while his subsequent private practice allowed him to represent clients facing serious legal and financial challenges.
His academic background in finance and law, federal courtroom experience, and professional recognition have helped establish his reputation in South Florida’s legal community. Through NMFA Law, he continues to handle complex matters where careful analysis, litigation strategy, and a thorough understanding of federal procedures are essential.
