
David Stuart Seltzer
A nationally recognized criminal defense attorney with a courtroom-first practice in cybercrime, federal criminal defense, and complex litigation.
David Stuart Seltzer is the managing partner of OneCallLegal and the lead attorney on the firm's criminal defense and cybercrime practice. He has been admitted in Florida, New York, Colorado, and the District of Columbia, and is routinely admitted pro hac vice when his clients' matters reach beyond those jurisdictions.
David began his career as a prosecutor in the Cyber Crimes Unit of the Miami-Dade State Attorney's Office, where he handled the kind of digital-forensics-intensive matters that most defense attorneys never see from the inside. That experience continues to shape how he prepares cases on the defense side today — from the way he reads forensic evidence to the way he negotiates with the same offices he once served alongside.
Over more than two decades in practice, David has built a national reputation as a criminal defense attorney who takes the cases other lawyers won't. His client base spans entrepreneurs, professionals, and individuals from a wide range of international backgrounds, and his courtroom approach is defined by exhaustive preparation, technical literacy in digital evidence, and an unwillingness to let a prosecutor's narrative go unchallenged.
The way he runs the firm reflects the way he was raised in the law: cases are tried, not handed off. Clients work with David directly. The firm's 24/7 intake model is something he insisted on personally — built on a single principle that has guided his career since 2013: skilled legal representation should be reachable by the people who actually need it.
- Federal Criminal Defense
- State Criminal Defense
- Cybercrime Defense
- Digital Forensics & E-Evidence
- Technology-Related Prosecutions
- Personal Injury Trial Practice
- University of Miami School of Law, J.D. (2004)
- English
- Spanish (conversational)
- French (conversational)



