Henry G. Castillo



Tel: (909) 466-4911


At a Glance

Henry advises public clients on public contracting, conflict of interest issues, the Brown Act, constitutional law and more.

Henry has extensive experience working for the California State Senate in both legislative and district capacities.

Henry is a veteran of the U.S. Navy.


Henry G. Castillo gained first-hand knowledge of the legislative process on a variety of public policy issues from his years serving elected officials at the state level. As a Municipal Law attorney at Best Best & Krieger LLP, he brings that valuable experience and insight to his local public agency clients.
Before joining BB&K, Henry was deputy district director for California Sen. Connie M. Leyva. The position gave him  a unique opportunity to see how cities and special districts work and interact with the communities they serve. Henry worked on some of the most critical issues local government agencies in California face, including legislation related to development, employment, the environment and water and veterans affairs. He was the lead staffer on labor, business, civil rights, immigration and water policy areas — a role that required frequent interaction with various water districts.
Henry previously worked as a district representative to former state Sen. Alex Padilla. He also worked for Padilla prior to law school as a California Senate Fellow. Henry assisted in developing and drafting  legislation that eventually became law. During that time, he was concurrently enrolled at California State University, Sacramento taking graduate level classes in government and public policy.
Henry has put his extensive legislative background to work for public agency clients, such as in drafting ordinances for  sidewalk/street vending and cannabis sales. Henry negotiates complex public contracts, advocating for his public agency clients’ best interests. He has authored a variety of Legal Alerts on topics including cannabis, homelessness and Fair Political Practices Commissions regulations, and has presented on sidewalk street vending. His article on COVID-19 and local authority was chosen as a runner-up in the Public Law Journal's 2020 Writing Competition.
Henry advises clients on a multitude of legal areas, including conflict of interest, the Brown Act, local elections laws, constitutional law issues, public contracting and some labor and employment issues. Henry advises both municipal and special district clients.
While attending the University of California, Hastings College of Law, Henry clerked for the Los Angeles County District Attorney's Hard Core Gang Division, where he conducted legal research. Henry also served as a legislative aide in the state Senate during law school.
A U.S. Navy veteran, Henry is married with a daughter. He enjoys grilling for his family and friends and rooting for their favorite team the LA Galaxy. Henry also serves on the Chaffey College Foundation Board’s Executive Committee.

  • University of California, Hastings College of the Law, J.D.
  • California State University, Los Angeles, B.A., political science
  • California Capital Fellows Program


  • California
Election Law Resource Center

Election Law Resource Center

BB&K’s Election Law Resource Center gives California cities the Vote of Confidence they need to ensure legal compliance with all aspects of local elections. This unique service includes:

  • A digital copy of BB&K’s Election Law Toolkit
  • ​Email and telephone hotline

Legal Alerts Sep 23, 2020

Two Courts Offer Election Guidance: Slow-Walking Ballots is Unconstitutional

Mail-In and Absentee Ballots Debated in COVID-19 Pandemic and Election Day Overlap

Authored Articles & Publications Aug 05, 2020

Postponing a Presidential Election and the Law

BB&K's Henry Castillo Writes About the Legal Authority for Election Postponement in PublicCEO

Legal Alerts Jun 01, 2020

$6 Million Fine for Trustee Who Knowingly Allowed Illegal Cannabis Dispensaries on Property Owned by Trust

California Appellate Court Says Trustee Can be Held Personally Liable

Legal Alerts May 04, 2020

Cities Have Broad Discretion to Determine Their Rent Control Programs

Court of Appeal Holds Cities May Enact Various Forms of Residential Rent Control Measures

Legal Alerts Apr 08, 2020

Local Government Has an Important Interest in Adjudicating Zoning Disputes

Ninth Circuit Dismisses Case Brought Against Alameda County for Zoning Requirements

Legal Alerts Mar 26, 2020

Takings Claim Fails on “Ripeness” Grounds

Ninth Circuit Decision in Apartment-Condominium Conversion Program Dispute

Legal Alerts Feb 26, 2020

Determining a “Super Majority” When Council Members are Missing

California Appellate Court Looks to Local Ordinance’s Intention for Determination

Legal Alerts Oct 04, 2019

New “Source of Income” Materiality Standard

FPPC Adopts Amended Regulations (Part 2)

Legal Alerts Oct 03, 2019

New “Materiality” Standard for a “Business Entity”

FPPC Adopts Amended Regulations (Part 1)

Legal Alerts Jan 23, 2019

New California Cannabis Regulations Approved

OAL Approves Cannabis Delivery and Other Regulations

Legal Alerts Dec 05, 2018

Laws Regulating Campaign Contributions Must Be Narrowly Tailored to Combat Corruption

Ninth Circuit Holds That States Have an Important Interest in Preserving the Integrity of Their Political Institutions

Legal Alerts Sep 07, 2018

Local Ordinances Cannot Permit Prosecution for Sleeping Outside on Public Property When No Shelter is Available

Ninth Circuit Holds Such Laws Violate the Eighth Amendment

Legal Alerts Aug 14, 2018

Coming to Your Town Soon: Cannabis (Maybe)

State’s Proposed Permanent Marijuana Regulations Limit Local Authority

Legal Alerts Jul 26, 2018

Federal Draft Infrastructure Bill Released

Aims to Provide Revenue to Repair Failing Infrastructure

  • "The COVID-19 Pandemic, the Role of Counties and Cities, and Constitutional Challenges to the Exercise of their Authority," Public Law Journal, Spring 2020

Contact Henry G. Castillo

Cookie Consent

By clicking “Agree,” you agree to the storing of cookies on your device to enhance website navigation, analyze website usage and assist in our marketing efforts. View our Cookie Notice here.