William J. Portanova Attorney at Law

Portanova@theLawOffices.com|(916) 444-7900

The uniquely broad background experience of William Portanova provides a legal edge few other attorneys can offer. Before entering private practice, Portanova served for many years as an Assistant United States Attorney, federally prosecuting complex cases in the areas of organized crime, narcotics, computer crime and all manner of white collar crime. Prior to that, he served for several years as a Deputy District Attorney in Sacramento County, prosecuting all types of crimes from misdemeanors to murders.

From 1991 to 1997, he directed the Organized Crime and Drug Enforcement Task Force and helped form one of the first state and federal High Tech Crimes Task Forces in California. For his accomplishments, Portanova received the U.S. Department of Justice Director’s Award in 1993.

Shifting from public prosecutor to private defender in 1997, he has since devoted his expertise to tough advocacy on behalf of clients accused of white collar crime. Throughout California, Portanova has successfully represented businesses and individuals caught up in the criminal justice system. His experience and accomplishments from both sides of the counsel table provide him with an exceptionally complete understanding of every case from every perspective.

William Portanova is frequently asked to contribute as a legal analyst for local and national media outlets on various pending legal matters.

Practice Areas

White Collar Criminal Defense; Federal Criminal Law; Fraud; Health Care; Insurance; Tax; Banking; Official Misconduct; Securities; Computer Crimes; Environmental Crimes; Internal Investigations


1982, California and U.S. District Court, Eastern, Northern and Central Districts of California; 1985, U.S. Court of Appeals, Ninth Circuit

Behind the Scenes

Melissa Mattei Senior Paralegal


Senior Paralegal Melissa Mattei joined the firm in 2000 after having spent many years in a defense law office in Bend, Oregon. Melissa earned her Juris Doctor in 2010 from Lincoln School of Law.

Julie Sherman Associate Attorney


Associate Attorney Julie Sherman joined the firm in 2007 and is a graduate of Lincoln Law School.