Nelson Hardiman - HealthCare Lawyers

Aaron C. Lachant

Aaron C Lachant
Aaron C. Lachant

T: 310.736.4684
F: 310.203.2727

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State Bar of California


State Bar of California, Health Law Section

Health Care Compliance Association


Syracuse University, J.D.

Aaron Lachant has been at the forefront of the marijuana industry since 2009. By solving novel and complex regulatory, compliance and licensing issues, Aaron has kept his clients, including approximately 45 of the 135 originally legalized dispensaries in Los Angeles under Proposition D (legislation he co-authored), in business and flourishing. Combining Aaron’s pioneering experience getting marijuana businesses permitted with his adroit navigation of a regulatory landscape in flux, has made him the go-to attorney for legal cannabis advice.

Cannabis Industry Counsel and Trusted Advisor

He frequently acts as outside general counsel for clients in the industry and is active in the Greater Los Angeles Collective Alliance (GLACA), an association of medical cannabis cooperative and collective operators whose mission is to provide safe access to patients with adherence to a strict code of operational guidelines. He is the only attorney appointed to the Los Angeles County Advisory Working Group on Cannabis Regulation. Aaron also heads the consulting group, MMLG, which focuses on navigating local and state licensing application requirements for cannabis-related businesses.

Focused on the Marijuana Business

Well ahead of the curve on the issues facing the marijuana business, Aaron’s work has grown with the maturing of the industry. He has worked on many sophisticated corporate transactions, advising clients on M&A deals, partnership disputes, and litigation involving regulatory violations. His legal knowledge of business and regulatory issues confronting the cannabis industry is complemented by years of experience representing other healthcare providers in all aspects of healthcare law. With the legal marijuana market expanding at a rapid pace, Aaron’s practice is devoted to keeping marijuana businesses open and consults with regulators in various jurisdictions to keep laws favorable.


The Daily Journal named Aaron one of the Top 40 attorneys in California under 40-years-old in 2018. The Legal 500, one of the premier legal research, ranking, and publishing firms in the world, recognized Aaron for his “cutting-edge work in the cannabis space.” Similarly, the Los Angeles County Board of Supervisors commended Aaron for his service on the Los Angeles County Advisory Working Group on Cannabis Regulation. Aaron was also recognized by The Best Lawyers in America (2020 Edition) for his healthcare litigation practice. Finally, Aaron was selected to the 2018 and 2019 Southern California Rising Stars list by Super Lawyers.

Life Outside the Firm

When he is not helping to keep (legal and permitted) drugs on the streets, Aaron spends his time rooting for the Syracuse Orange and exercising with the Los Angeles Rowing Club. He enjoys writing, traveling, playing the piano, building guitars, and sous vide cooking.


  • Business Tax Dispute A medical marijuana dispensary’s business tax certificate was wrongfully canceled by the Los Angeles Office of Finance. The Office of Finance initially refused to reinstate the tax certificate. After Aaron’s involvement, the Office quickly changed its tune, determined that the dispensary was compliant, and reinstated the certificate, enabling our client to re-open their business.
  • Compliance Programs Prepared operating plan and compliance program for a medical marijuana dispensary in connection with license application.
  • Landlord/Tenant Obtained favorable settlement and dismissal for a landlord in nuisance abatement action filed by the City of Los Angeles.
  • Licensing Obtained permits for medical marijuana activity in Palm Springs, San Diego, Malibu, and San Luis Obispo.
  • California Medical Board Successfully resolved a longstanding investigation by Operation Safe Medicine, a project of the Medical Board of California, helping a doctor avoid criminal prosecution by proactively addressing a physician compliance issue involving medical marijuana recommendations. <also in Farooq Mir bio>
  • Multi-party Lawsuit Represented 40 medical marijuana dispensaries and obtained favorable settlements in a multi-party lawsuit filed by the City of Los Angeles. Additionally, represented 20 medical marijuana dispensaries in a lawsuit filed against the City involving medical marijuana regulatory ordinance.
  • Partnership Dispute Obtained preliminary injunction and stipulated judgment against individual operating a copycat marijuana dispensary using client’s name.
  • Proposition D Defense Obtained two complete dismissals against Prop D-compliant marijuana businesses, including a dismissal based on Kellett motion, as well as multiple settlements in which the City Attorney agreed not to prohibit the business from operating.
  • Proposition D Defense Since Proposition D was passed in May 2013 to regulate local medical marijuana businesses, the Los Angeles City Attorney has shut down more than 800 dispensaries. Rarely is a case dismissed. But, in March 2017, Aaron won a dismissal on the first day of trial by showing that the prosecution would be unable to meet the legal burden proving our client engaged in illegal activity.
  • Regulatory Drafted municipal medical marijuana regulatory ordinance that qualified for the May 2013 ballot in the City of Los Angeles, providing limited immunity from enforcement to approximately 135 original cannabis dispensaries from a previous City ordinance.
  • Taxation Represented eight medical marijuana dispensaries in ongoing lawsuit related to the City of Los Angeles medical marijuana taxation ordinance.
  • Unfair Competition Obtained a permanent injunction on behalf of a Los Angeles medical marijuana dispensary, as part of a global settlement with an illegal competitor business.
  • Unlawful Seizure Obtained court order for the Los Angeles Police Department to return $100,000 bail payment that was unlawfully seized as well as unlawfully seized medical marijuana.
  • Legislation With the City of Malibu refusing to implement adult use cannabis regulations, Aaron drafted a ballot measure to overturn the cannabis ban. Measure G, which allows adult use cannabis and delivery in Malibu, not only qualified for the November 2018 election, but was also overwhelmingly passed by voters. As a result, one of Aaron’s clients received their adult use permit from Malibu in January 2019 and will begin selling to the community shortly.


Nelson Hardiman Attorneys Recognized as Super Lawyers’ 2021 Southern California Rising Stars

January 28, 2021

Nelson Hardiman Recognized by U.S. News & World Report’s “2021 Best Law Firms in America” for Health Care Law

November 11, 2020

Best Lawyers in America 2021 Recognizes Five Nelson Hardiman Attorneys

August 20, 2020

6 Nelson Hardiman Attorneys Recognized as Super Lawyers’ 2020 Southern California Rising Stars

June 9, 2020

What Legalization Means for Health Care and Cannabis

January 23, 2020

Banning Vape Products Containing THC is not the Right Response to the Vape Crisis

November 15, 2019

Nelson Hardiman Recognized by U.S. News & World Report’s “2020 Best Law Firms in America” for Health Care Law

November 6, 2019

Best Lawyers in America 2020 Recognizes Six Nelson Hardiman Attorneys

August 15, 2019

The Legal 500 Recommends Nelson Hardiman

June 4, 2019

Nelson Hardiman Attorneys named to the 2019 Southern California Rising Stars

May 30, 2019

Nelson Hardiman Drafted Cannabis Legislation Scores Victory for Malibu Residents and Client

January 15, 2019

Client Alert: New California Privacy Law, AB-2402, Specifically Targets Cannabis Licensees

October 4, 2018

Aaron Lachant Quoted On ABC7

August 2, 2018

Nelson Hardiman Partner Aaron Lachant Recognized for Leadership Role in L.A. Cannabis Law

June 25, 2018

Aaron Lachant Named Top 40 Under 40 By The Daily Journal

June 20, 2018

Nelson Hardiman Attorneys’ named to list of 2018 Southern California Rising Stars

June 7, 2018

Aaron Lachant interviewed on ABC7

February 14, 2018

Aaron Lachant interviewed on KTLA5

January 3, 2018

Aaron Lachant interviewed on ABC7

December 29, 2017

Banner Year of Recognition for Nelson Hardiman

August 16, 2017

Partner Aaron Lachant Appointed to Los Angeles County Advisory Working Group on Cannabis Regulation

August 3, 2017

Nelson Hardiman dismisses Prop D marijuana case based on Kellett motion

August 22, 2016

Nelson Hardiman obtains permanent injunction on behalf of medical marijuana dispensary

March 9, 2016

Nelson Hardiman Doubles Down

January 12, 2016

Nelson Hardiman Elevates Aaron Lachant to Partner

January 9, 2016

Nelson Hardiman Vindicates Wrongly Accused Physician

November 14, 2014

Nelson Hardiman Overturns Medi-Cal Exclusion and Suspension of Dentist

August 8, 2012

Nelson Hardiman Wins Medi-Cal Appeal

June 18, 2011

Nelson Hardiman Prevails in Case of First Impression re: Medical Marijuana Collective

January 20, 2011

View More


Banning Vape Products Containing THC is not the Right Response to the Vape Crisis

California Cannabis Industry Association

November 15, 2019

Client Alert: New California Privacy Law, AB-2402, Specifically Targets Cannabis Licensees

NH Healthcare Law Perspectives

October 4, 2018

Appealing City of Los Angeles Commercial Cannabis License Denials

NH Healthcare Law Perspectives

January 23, 2018


2020 Cannabis Industry Virtual Symposium

2020 Cannabis Industry Virtual Symposium

Aug 07, 2020

Livestream: Federal Update and the Hottest Rules Under MAUCRSA

Cannabis and Hemp Business Considerations

Apr 02, 2020

Gotham’s Cannabis Shark Tank Pitch Night

Gotham Media

Nov 07, 2019

How is medical marijuana disrupting health care, and why is that potentially positive?

The Believe in Better Project

Oct 16, 2019

Illinois’ Medical Marijuana Regulations; An Expert Perspective

2019 Cannabis Industrial Marketplace Chicago Summit & Expo

Sep 19, 2019

Developing an Authentic Cannabis Brand

Green Market Summit

Sep 11, 2019

Cannabis Legalization

Cannabis 495

Aug 18, 2019

The Advanced Economic State of Cannabis

2019 Green Market Summit

May 07, 2019

Workshop: How Will California’s New Cannabis Regulations Impact Your Business?

MMLG & Nelson Hardiman Workshop

Oct 24, 2018

Secure Your Joint

Cannabis World Congress & Business Exposition

Sep 28, 2018

The July 1 Deadline, New Emergency Regulations & What’s Next for California Cannabis Businesses

Nelson Hardiman & MMLG Event

Jun 27, 2018

Cannabis Compliance Update

MMLG & Nelson Hardiman Seminar

Apr 12, 2018

Microbusiness Licensing & Compliance Seminar

Nelson Hardiman & MGO/Ello Seminar

Mar 27, 2018

Cannabis Compliance Seminar: What You Need to Know for January 1st


Dec 28, 2017

Creating the Best Regulatory Frameworks for Cannabis

2nd Annual Cannabis Compliance Summit 2017

Jul 20, 2017

Understanding Proposition 64 and California’s Evolving Regulatory Landscape for Adult Use Recreational Marijuana

Beverly Hills Bar Association Health Law Committee

Apr 05, 2017

Landlord-Tenant Issues Affecting Medical Marijuana Dispensaries in California

Beverly Hills Bar Association

May 25, 2016

Reefer Madness: Medical Marijuana’s Evolution From The Courtroom To The Boardroom

Beverly Hills Bar Association Health Law Committee

Mar 30, 2015

Data and Privacy Protection in Operations and Licensing

Marijuana and Intellectual Property Conference | Seattle, WA

Jul 11, 2014

Zigzagging Through the Complex World of Medical Marijuana Businesses

California Receivers Forum

Jul 12, 2013

Preparing for and Responding to Hospice and Home Health Audits

California Association of Health Care Services at Home Annual Conference

May 03, 2013

Current Issues In Medical Marijuana Regulation

Continuing Education of the Bar

Dec 06, 2012

View More
January 24, 2020
Los Angeles, CA
Believe in Better Project
September 25, 2019
Hollywood, CA
2019 Green Market Summit
February 14, 2018
Los Angeles
ABC7 News
January 2, 2018
Los Angeles
December 28, 2017
Los Angeles
ABC7 News
December 1, 2017
MMLG Cannabis Compliance Event
October 3, 2017
MMLG Cannabis Compliance Event

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