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Cultiva Law, PLLC

Kaufman McGowan PLLC


Sean J. McGowan represents emerging growth, middle market and public companies and investment firms in their corporate, securities, financing, borrowing, merger & acquisition and other legal matters.

Mr. McGowan is:

President of the Columbian Lawyer’s Association of Suffolk County.
Secretary of the Confederation of Columbian Lawyers of New York State.
Contributing Editor of the Cannabis Law Digest.
Member of the Chaminade Long Island Businessmen’s Association, the Suffolk County Bar Association and the Long Island Capital Alliance.
Mr. McGowan received the Huntington Chamber of Commerce Young Professionals’ Long Island’s Top 30 Young Professionals Award in May 2013.

He authored an article entitled

A Delayed Search of an Automobile Makes for an Unconstitutional Seizure, published in the Touro Law Review May 2013.

Mr. McGowan received a

J.D., summa cum laude,  from Touro College in 2014, where he served as an editor of the Touro Law Review.
B.S., magna cum laude, from Adelphi University in 2011.

Neville Peterson LLP

Neville Peterson LLP

Katchko, Vitiello & Karikomi, PC

Senior Counsel

Tatyana Brenner handles all regulatory and licensing matters unique to the commercial cannabis industry and has expanded her practice to include real estate transactions and financing.  She specializes in assisting clients with regulatory licensing on both the local and state level and attending to all peripheral matters.  KVK is honored to have Tatyana as part of the team; she is a relentlessly hard worker always willing and able to engage with her clients and meet important deadlines.  She is a fluent Russian speaker.

Tatyana received her juris doctorate from Loyola Law School in Los Angeles, California in 2015 where she was part of vocal student organizations advocating for women’s rights.  She completed her undergraduate degree at the prestigious University of California, Berkeley.

Before joining KVK, Tatyana worked with a successful boutique real estate and business law firm in Woodland Hills, California.

Bradley Arant Boult Cummings LLP


Bradley Arant Boult Cummings LLP


Bradley Arant Boult Cummings LLP




Katchko, Vitiello & Karikomi, PC


Known as a powerhouse within the cannabis industry, Yelena Katchko focuses her practice on corporate law, licensing, and regulatory compliance with an emphasis on representing the interests of Southern California’s commercial cannabis industry. She has represented medical cannabis clients in the City of Los Angeles since 2009 and has become one of the industry’s most recognized names. Her efforts are now dedicated to navigating her clients through the new regulated and licensed framework, preparing for acquisitions and exits, and ensuring the integrity of assets in mergers and roll-ups. Yelena is able to represent all types of cannabis businesses including retail dispensaries, cultivators, manufacturers, distributors, non-storefront delivery services, investors, MSO’s whether large or small.

Yelena was born in Kiev, Ukraine and first arrived in the United States at the age of 11. Prior to attending law school, she attended University of California Los Angeles for her undergraduate studies and completed a bachelor’s degree in Political Science, with honors. She attended the Pepperdine University School of Law where she received her juris doctorate. She is admitted to practice before all courts in the state of California.

Yelena’s experience includes involvement in shaping the Medicinal and Adult Use cannabis regulations in both the City of Los Angeles and the State of California through a deep professional network, pro bono affiliations, local alliances and town halls. In particular, Yelena was integral to the city-wide resolution of City of Los Angeles v. 420 Grand et al. which provided a framework for the City of Los Angeles’ Proposition D limited immunity and, later, Measure M’s priority licensure. She has developed significant experience in local government matters by being a key part of discussions with officials on the ever-changing regulatory landscape and by working closely with policy makers to advocate on behalf of her clients.

Yelena is a founding member and partner of KVK.

Katchko, Vitiello & Karikomi, PC

Associate Attorney

James joins KVK as an associate attorney after serving dutifully as a law clerk during his graduate studies. His practice is dedicated to regulatory matters, mergers and acquisitions, and the corporate, transactional and real estate needs of California’s commercial cannabis industry.

James attended California Polytechnic University – Pomona, where he obtained his Bachelor of Arts degree in Sociology. Dedicated to a life in law, James successfully completed paralegal studies at University of California Los Angeles before heading to Chapman University Dale E. Fowler School of Law to earn his Juris Doctorate with an emphasis on Business and Real Estate Law.

He lives by the motto, “stagnation means decline,” and believes that forward progress is always necessary in life and in business. James carries this thinking into his clients’ business needs, helping them to avoid complacency and to stay ahead of curves and competition, particularly in the daunting commercial cannabis landscape.

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