About the City Attorneys

Gregory Diaz

Gregory Diaz became Ventura's City Attorney in September 2014.  Prior to moving to Ventura, he served as the City Attorney for the City of Merced from 2001 to August 2014.  He began his legal career as an associate attorney at a large municipal law firm becoming the first associate in the firm in a branch office to make partner.  During this time, Gregory served as the contract City Attorney for the Cities of Lake Forest, Stanton, and Lomita.  He was admitted to the California State Bar in 1991 and is admitted to practice before the Central, Eastern, and Northern Districts of the Federal District Courts in California; the Ninth Circuit of the U.S. Court of Appeals; and before the U.S. Supreme Court.

Gregory received his B.A. in Public Administration/Political Science from California State University, Long Beach, his Master's Degree in Public Administration from the Consortium of the California State University, and his J.D. from Western State University, College of Law.

Prior to becoming an attorney, Gregory spent three years as the Assistant to the Assistant Superintendent of Instruction in the Pajaro Valley Unified School District in Watsonville, CA.  He began his professional career as a Congressional Aide for a U.S. Congressman from Orange County, California.

Andy H. Viets

Andy H. Viets, a thirty-year resident of Ventura County, is the City’s Senior Assistant City Attorney.  He graduated from Hofstra University in New York with a Bachelor of Arts degree in political science in 1982 and from the State University of New York at Buffalo School of Law in 1985.  He started practicing law in Ventura in January 1987, first as a workers’ compensation defense attorney and soon thereafter in the field of civil litigation, which included defending various public entities in civil lawsuits.

After many years practicing with a firm in Ventura, Mr. Viets opened his own office in 2006, specializing in civil litigation, which included representing public entities.  He joined Norman Dowler, LLP, in Ventura in April 2007, where his practice continued to focus on civil litigation and he served as the head of the firm’s litigation department.  Mr. Viets began working for the City in 2008.  His primary areas of concentration are civil litigation, public records requests, and employment law.

Mr. Viets serves as Fee Dispute Arbitrator for the Ventura County Bar Association.  He has made presentations to local legal organizations on various topics involving public entities.  He is a member of the Ventura County Trial Lawyers Association, the Tri-Counties Local Government Attorneys’ Association, and the American Board of Trial Advocates.

Dirk DeGenna

Dirk DeGenna, Assistant City Attorney II, joined the City Attorney's office in September 2015. He graduated from UCLA in 1991 with a Bachelor's Degree in Political Science and received his Juris Doctorate from Pepperdine University in 1996. Dirk works to defend the City in civil litigation matters in both state and federal courts, in the prosecution of misdemeanor cases and code enforcement matters. Prior to working for the City, he worked for a private law office representing multiple public entities in Ventura, Santa Barbara and San Luis Obispo Counties.

Miles Hogan

Miles Hogan, Assistant City Attorney II, joined the City Attorney's office in March 2016. He specializes in water, wastewater and environmental law, including water rights, water quality, groundwater management, rates, environmental review and regulatory compliance. Miles most recently worked for a private law firm representing cities and other public agencies. 

Miles received his B.S. in Marine Biology from University of California, Los Angeles, and his J.D. from University of California, Davis School of Law, graduating with the school's Environmental Law Certificate and Public Interest Law Certificate. He was the inaugural fellow for the California Environmental Law & Policy Center and now serves on its Advisory Board of Directors. Prior to law school, Miles participated in an AmeriCorps Program called City Year, and he highly recommends young adults consider a year of service with AmeriCorps. Miles lives in Ventura and enjoys hiking, running, going to the beach and eating at local restaurants.

Megan Lorenzen

Megan Lorenzen, Assistant City Attorney l, joined the City Attorney's office in June 2019. Megan received her B.A. in Sociology from American University and her J.D. from Duke University School of Law. She specializes in civil litigation and labor and employment law. Prior to joining the City Attorney's office, Megan worked for a large private law firm representing both public entities as well as corporations in a wide variety of civil lawsuits and employment disputes.

In line with her commitment to public service, Megan currently serves as Secretary on the Junior Board of Directors for El Nido Family Centers, a nonprofit organization that provides comprehensive support services to families in low-income communities.


Susan Marquez

Susan Marquez began working for the City Attorney's office in 1999. During her tenure with the City, she has been in charge of administration and management. Susan has 32 years of experience in civil litigation, working for various private law practices in Ventura and Los Angeles counties. She was an active member of the Ventura County Legal Secretaries Association and held various posts within that organization. Susan attended the University of California, Santa Barbara and received her Paralegal Certificate. She and her husband have two grown children and enjoy family time and traveling.

Johanna Johnsen

Johanna Johnsen, Legal Litigation Assistant, joined the City Attorney's office in October 2015. She was born and raised in Oxnard and received an Associate's Degree in Administration of Justice from Ventura College. Prior to joining the City, she lived in Texas where she worked in private law practices specializing in civil litigation. While in Texas, she received designation as a Certified Legal Assistant through the National Association of Legal Assistants. In April 2017, she became a Notary Public for the State of California. She has two daughters who are college students (at UCLA and the University of Texas, Austin) and is absolutely thrilled to be back in beautiful Ventura, spending her free time riding her bike near the ocean and practicing yoga.

Susan Conway

Susan Conway, Administrative Assistant, joined the City Attorney’s office in November 2018.  She has over 25 years of combined experience working for a federal contractor and the private sector.  Susan grew up in Oxnard and has three grown sons and four grandchildren.  Susan is excited to be working in the public sector and promoting public service.