Kate has experience in a range of white collar and financial crimes:

• wire and mail fraud

• money laundering

• securities

• cyber threats

• FCPA

• price fixing

• consumer protection

• FDA

• public corruption and bribery

• PPP fraud, and

• conspiracy.

Investigations involving federal financial crime are complex, resource-intensive, and often well underway before a target knows they exist. By the time the government executes a search warrant, issues a grand jury subpoena, or makes an arrest, prosecutors have often spent months building their case.

Kate investigated and prosecuted federal financial crimes as a DOJ prosecutor, working alongside the FBI, IRS, FDA, and other federal agencies. She knows how these cases are constructed, what prosecutors look for, and where the weaknesses are.

Federal financial crime investigations frequently target both individuals and the businesses they operate. Kate represents executives, business owners, employees, and companies facing federal scrutiny at every stage, from the first sign of investigation through trial and appeal.

Federal health care fraud investigations are among the most complex and aggressive the government pursues. They move quietly, often for months or years before a target even knows they are under scrutiny. By the time agents show up at your door, the government has already built its case.

Kate Rumsey started her prosecutorial career on the Department of Justice's Health Care Fraud Strike Force, one of the government's most specialized and aggressive units. She knows exactly how these investigations are built, what evidence prosecutors prioritize, and where cases can be challenged and won.

Health care fraud cases typically involve:

• Billing fraud and upcoding

• Kickback and Stark Law violations

• Medicare and Medicaid fraud

• Pharmacy fraud

• Telemedicine fraud schemes

• Parallel civil and criminal investigations

• False Claims Act exposure

Representing health care providers before regulatory agencies:

A federal investigation often does not travel alone. Kate also represents health care providers facing scrutiny from the Texas Medical Board, the Texas Department of Licensing and Regulation, and other state and federal regulatory bodies, protecting both their license and their freedom.

The False Claims Act (FCA) is one of the most powerful tools in federal law, and one of the most complex. If you have inside knowledge of fraud against the government, you may have the right to file a qui tam lawsuit on the government's behalf and share in any recovery.

Kate has worked on both sides of FCA cases, as a federal prosecutor pursuing fraud against the government in parallel investigations and as defense counsel for those facing FCA exposure. That dual perspective means she understands not just how to file a strong qui tam case, but how the government evaluates them and what makes one worth pursuing.

The FCA covers:

• Health care fraud against Medicare and Medicaid

• Defense contractor fraud

• Government grant and loan fraud

• Pharmaceutical fraud and off-label marketing schemes

• Customs and import fraud

• Any false claim submitted to a federal program

What a qui tam case means for you:

Whistleblowers who file successful qui tam suits may be entitled to a percentage of the government's recovery, which in major fraud cases can be substantial. Federal law also provides strong anti-retaliation protections for employees who report fraud.

The filing process is strict. Qui tam complaints are filed under seal, and the government has the right to intervene and take over the case.

Representing both whistleblowers and those facing FCA exposure:

Not everyone who comes to Kate with a FCA issue is a whistleblower. If you or your business is on the receiving end of an FCA investigation or Civil Investigative Demand, Kate's prosecutorial background gives her insight into how the government builds these cases, and how to defend against them.

Kate Rumsey investigated and prosecuted federal immigration fraud cases as a DOJ prosecutor, working alongside ICE-HSI, Department of State, and other federal agencies. She knows how these cases are made and how to defend against them.

Federal immigration criminal matters Kate handles:

• I-9 Audits

• Illegal reentry (8 U.S.C. § 1326)

• Immigration fraud and document fraud

• Visa fraud

• Harboring and smuggling

• Marriage fraud

• Identity theft in immigration contexts

• Employer-side immigration violations

• Conspiracy charges arising from immigration investigations 

Kate also has a Certificate in Spanish for Legal Professionals from Southern Methodist University.

Kate Rumsey has handled matters on appeal and argued before multiple federal appellate courts, including the Fourth, Fifth, and Seventh Circuits.

Kate's appellate practice is also grounded in real trial experience. She has tried numerous federal cases to a jury as first-chair counsel and knows how errors arise in the courtroom, which makes her sharper at spotting them in the record on appeal.

Kate has deep roots in the Northern District of Texas: as a law clerk to the Honorable Barbara M.G. Lynn, as a federal prosecutor trying cases in its courtrooms, and as a defense attorney who knows its judges, its procedures, and its culture.

Kate welcomes inquiries from out-of-state counsel seeking a reliable, experienced local counsel presence in the Northern District of Texas.