Daniel Marquith

Daniel P. Marquith is a Senior Advisor and executive-level law enforcement expert with more than 20 years of experience leading public safety operations at the local and federal level. Skilled in planning, organizing and coordinating sensitive activities in conjunction with federal agencies, including DEA, DHS, Secret Service and FEMA, he specializes in investigations, risk assessment, disaster response, security planning and anti-terrorism. Of notable mention is Mr. Marquith’s assignment in 2004 to the Patrol Division and Sexual Offender Task Force as a Deputy Sheriff, and one of the founding members of this important task force. Mr. Marquith trained and commanded teams and established relationships with community, political and agency-level stakeholders to achieve organizational goals.

His law enforcement career began when he was hired at the Hendry County Florida Sheriff’s Office. In 2002, Mr. Marquith relocated to the Florida Keys, and accepted a position as a Deputy Sheriff with Monroe County Sheriff’s Office. He was ultimately transferred to the Osceola County Sheriff’s Office, where he served as an patrol Deputy, Intelligence Detective, High Liability Instructor, Aggressive Driving Deputy, DUI Investigator, DUI Instructor, and Drug Recognition Expert. His strong knowledge of police operations and ability to build consensus were quickly recognized by the leadership team. He would go on to receive a series of promotions that eventually led to him becoming a Captain. Under his leadership, the organization has delivered a double-digit reduction in crime, improved officer performance,
and increased inter-agency collaboration with federal authorities.

After his retirement from law enforcement, Mr. Marquith served as an Adviser to Congressman Darren Soto of Florida’s Ninth Congressional District in the U.S. House of Representatives. He entered nonprofit senior management as the Deputy Regional Executive director at Mothers Against Drunk Driving, managing operations in Florida, Puerto Rico and the Caribbean. While with MADD, he Developed, implemented and managed initiatives to reestablish the organization’s brand and increase victim services to those impacted by impaired driving. Mr. Marquith also oversaw MADD’s expansion into the Caribbean and was instrumental in engaging with territorial leaders which resulted in the funding and hiring of five full-time employees for the first time in the history of the organization.

In October 2022, President Joseph R. Biden, Jr. announced Mr. Marquith’s appointment to his administration, as Deputy Chief of Staff for U.S. Immigration and Customs Enforcement. Mr. Marquith left federal service as the Senior Advisor to the Office of the Director and is responsible for overseeing engagement with our nation’s state, local, and tribal law enforcement agencies, as well as leading a cabinet-level initiative in support of United States veterans.

Mr. Marquith is a former member of the National Sheriff’s Association, and former co-chair of the Florida Public Service Association. He continues his law enforcement service in Florida as a reserve Deputy Sheriff for the Seminole County (FL) Sheriff’s Office. He graduated from the College of the Florida Keys in 2002.