Mansoor Broachwala brings a rare perspective to government defense – having built cases as a prosecutor and now dismantling them as a defense attorney.
Mansoor Broachwala was selected to join a specialized felony white collar prosecution unit at the Illinois Attorney General's Office — a recognition that his trial instincts and legal acuity suited something more complex than general criminal practice.
At the Attorney General's Office, the cases were different in kind and in stakes. This was not high-volume county work. This was sophisticated financial crime: money laundering, theft, embezzlement, identity theft, mail fraud and wire fraud schemes stretching across state lines, Medicaid fraud, securities fraud, and bank fraud.
Alongside his prosecutorial role, Mansoor was simultaneously managing relationships with law enforcement. During his time at the Illinois Attorney General’s Office, he trained and advised more than thirty law enforcement agents on the development and use of investigative powers, drafting civil and criminal subpoenas, strategizing case operations, supervising investigations, building cases through grand jury, conducting search warrants, and providing instruction on regulatory policy. He was not just a prosecutor in a courtroom. He was a legal architect helping agents build cases that would survive the scrutiny of government judges and skilled defense counsel.
Mansoor’s experience brought assignment that few attorneys at his career stage receive he was designated as a Special Assistant United States Attorney, assigned to assist DOJ management on collaborative government cases and regulatory matters. The assignment put him in the room with government prosecutors, working on matters at the intersection of state and government authority, a vantage point that would prove invaluable in the years to come.
If the Attorney General's Office was where Mansoor became a serious white collar prosecutor, his tenure as a senior criminal tax attorney with the United States Department of the Treasury — in the IRS Office of Chief Counsel — is where he became one of the most experienced government enforcement insiders in his field.
The IRS Office of Chief Counsel is not a prosecutorial office in the conventional sense. It is the legal nerve center of the most financially sophisticated law enforcement agency in the government. Mansoor's role there was to advise criminal investigators and special agents on financial crimes. Mansoor’s advice reached IRS special agents on a daily basis and also reached other agencies like the FBI, Homeland Security Investigations, ICE, the DEA, the Secret Service, and the Texas Attorney General's Office. These investigations were violations of the tax code and any related financial crime including Tax Evasion, Conspiracy, Money Laundering, Cryptocurrency-related fraud, healthcare fraud and CARES Act fraud, drug enforcement, and dark web operations.
While most defense practitioners have seen these investigations from the outside — reading government exhibits and cross-examining agents at trial — Mansoor has been inside the room where the strategy was built. He knows how criminal referrals are made. He knows how parallel civil and criminal investigations are coordinated. He knows what a prosecution memo says before it goes to the U.S. Attorney's Office, because he wrote them.
His work at the Treasury also extended into policy. He contributed to the development of criminal policy on search warrants, money laundering enforcement, and asset forfeiture. He managed a fast-paced docket of cases from multiple regulatory agencies simultaneously. He worked closely with the U.S. Attorney's Office and the DOJ's Tax Division on million-dollar financial matters. And he spearheaded one of the largest government undercover investigation groups — a program that required coordinating law enforcement strategy across agencies, jurisdictions, and investigation types simultaneously.
When Mansoor advises a client who is the subject of an IRS criminal investigation, he is not reading from a defense attorney's playbook of guesses about how the government operates. He is drawing on direct, recent, senior-level experience inside the agency conducting the investigation.
Many people think that the Government is only targeting large corporations, major drug traffickers, or extremely large criminal syndicates. The truth is that the Government largely targets small businesses and average individuals that find themselves on the wrong side of the law. MB Law was built on a single premise: the clients who face the most serious government investigations deserve counsel who has been on the other side of those investigations.
Mansoor Broachwala left government government service to provide that counsel — to bring the insider knowledge, strategic instincts, and courtroom experience of a career government lawyer to the defense of individuals and organizations under government scrutiny.
His practice encompasses the full range of matters that arise when the government targets a person or a business: government criminal defense, False Claims Act and qui tam defense, Anti-Kickback Statute allegations, tax fraud and IRS criminal investigation defense, SEC and regulatory enforcement defense, healthcare compliance, government investigations at all stages, and complex commercial litigation. He handles matters in Illinois and government courts. He further assists individuals with administrative summons, administrative subpoenas, criminal subpoenas, grand jury investigations, requests for information, fraud unit investigations, proffers, and more.
Across every matter, the approach is the same: understand the government's theory before the government has finished developing it; build the defense from the facts out rather than the law in; and give clients access not to a law firm's machinery but to the direct attention and judgment of an attorney who has spent his career preparing for exactly these cases.
During his government service, Mansoor Broachwala assisted government criminal agents and prosecutors in complex financial and organized crime investigations through several multi-agency task forces. Many criminal agents are assigned to numerous task forces. These task forces bring together government, state, and local agencies to investigate sophisticated criminal activity involving financial systems, organized crime networks, and cross-border money flows.
The Joint Terrorism Task Force (JTTF) is the federal government's primary counterterrorism investigative body, led by the Federal Bureau of Investigation and supported by numerous federal, state, and local law enforcement agencies. Work in this environment involves investigations into terrorism financing, transnational financial networks, material support to designated organizations, and international money transfers used to conceal illicit activity. Investigations frequently involve financial tracing, international cooperation, and coordination with intelligence agencies.
The OCDETF program is a Department of Justice initiative that targets high-level criminal organizations responsible for drug trafficking, money laundering, and international criminal enterprises. These investigations require multi-agency collaboration between DOJ, IRS-CI, FBI, DEA, Homeland Security Investigations, and other federal agencies — precisely the agencies Mansoor worked alongside throughout his government career.
The Chicago Financial Crimes Task Force focuses on complex financial crimes affecting the financial system and public markets. Investigations involve coordination between federal prosecutors, financial regulators, federal investigative agencies, and state enforcement authorities — covering the full spectrum of sophisticated financial crime from securities manipulation to large-scale cryptocurrency schemes.
Across jurisdictions, the current DHS Homeland Security Task Force (HSTF) framework focuses on six primary threat categories. Mansoor's government experience spans the investigative and legal dimensions of each of these areas — giving MB Law clients direct insight into how the government approaches these matters from the inside.
Key targets include:
Investigations include:
Targets organizations involved in:
Recent directives emphasize targeting:
The HSTF model overlaps with:
Examples include:
In addition to formal task forces, investigations frequently required cross-border financial crime coordination involving international money movement and global criminal networks. These matters demanded fluency in the legal frameworks governing international law enforcement cooperation — including Mutual Legal Assistance Treaties (MLATs), Financial Intelligence Unit coordination, and blockchain analysis of cross-border cryptocurrency flows.
| Bar Admissions & Courts |
State Bar of Illinois United States Supreme Court U.S. District Court — N.D. Illinois U.S. District Court — S.D. Texas U.S. District Court of District of Columbia |
| Education | University of Detroit Mercy School of Law, J.D. |
| Agency / Office | Role & Focus |
|---|---|
| U.S. Department of the Treasury — IRS Office of Chief Counsel | Senior Criminal Tax Attorney — White Collar, Tax Evasion, Money Laundering, Cryptocurrency, Digital Assets, Undercover Operations |
| Illinois Attorney General's Office | Assistant Attorney General + Special AUSA — Felony White Collar Prosecution Unit |
| McLean County State's Attorney's Office | Assistant State's Attorney — General Felony and Misdemeanor Trial Practice |
| Department of Homeland Security — ICE Office of Chief Counsel | Government Civil and Criminal Matters — Immigration and White Collar Intersection |
| Wayne County Prosecutors Office | Detroit, Michigan |
Throughout his career in government service — across the IRS Office of Chief Counsel, the Illinois Attorney General's Office, and prior government roles — Mansoor provided legal counsel, investigative strategy, and law enforcement training to agents and investigators at the following agencies:
Experience across a range of government investigations and enforcement actions.
Complex government investigations involving corporate conduct, financial transactions, and regulatory enforcement actions.
Matters involving government healthcare programs, billing practices, and enforcement actions under government regulations.
Allegations involving financial misconduct, fraud, and money movement across government jurisdictions.
Representation during grand jury investigations, including witness preparation and strategic response to subpoenas.
Enforcement actions brought by government agencies involving compliance and regulatory obligations.
Advising organizations during internal reviews where potential government exposure or enforcement risk exists.
Mansoor Broachwala, Esq. — Licensed in Illinois since 2017
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