Sean B. O'Connell

Counseled an African mining company on Office of Foreign Assets Control (OFAC) sanctions and risk exposure.

Conducted an internal investigation of a Department of Defense (DOD) contractor into possible violations of the FCA and other related regulations.

Represented a national immigration services company in an investigation by state insurance regulators.

Conducted internal investigations into public corruption allegations at a state university and in public school districts.

Represented a multistate health care organization responding to allegations by the Small Business Administration (SBA) that it improperly received millions of dollars in Payment Protection Program (PPP) funding because it violated the SBA's affiliation rules.

Obtained a non-intervention decision from the U.S. Attorney's Office and State Attorney General's Office into FCA allegations of health care fraud.

Conducted an internal investigation for international energy company to respond to allegations of FCPA violations.

Developed a compliance program for a multinational energy company.

Served as lead government counsel in dozens of criminal health care and tax fraud prosecutions.

Served as lead government counsel in FCA investigations of medical practices and hospital systems accused of deceptive billing practices.

Served as lead government counsel in FCA investigations of fraudulent billing by DOD contractors.

Served as co-counsel in public corruption and financial fraud investigations of former Texas State Senator Carlos Uresti and Reeves County Judge Jimmy Galindo.

Served as criminal tax counsel assigned to FCPA investigation of a European telecommunication corporation.

Served as co-lead counsel in a 10-week jury trial of a homebuilder defendant who conspired to obstruct justice and defraud the United States and various lending institutions of more than $25 million.

Served as counsel in a five-week jury trial against a lawyer and others who conspired to evade assessment of $24 million in income using nominee entities, including a fictitious Irish bank.

Secured a legal victory in a one-week jury trial against two promoters of a $28 million sham trust scheme.

Served as defense counsel in dozens of claims brought pursuant to the Federal Tort Claims Act.

Defended the constitutionality of government practices throughout the Western District of Texas, including civil and criminal forfeiture procedures during Department of Homeland Security searches and seizures.