OUR TEAM

Experience & Expertise​

O&A’s team of attorneys, paralegals and supporting staff are all focused on coporate and commercial law, with a special focus on partnering with entrepreneurs and the startup community.

Photo of Dan Offner

Dan
Offner

Managing partner
In addition to running O&A as managing partner, Dan works with startups and emerging growth companies, as well as angel and venture capital investors.
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Michael
Borenstein

Partner
Mike is a seasoned transactional attorney who helps to oversee the firm’s startup program. In this role, Mike works hand-in-hand with founders to efficiently incorporate, organize and grow their businesses.
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Afshin
Hakim

Of Counsel
Afshin has more than 20 years’ experience representing startup, emerging growth, and middle market companies, serving as a trusted advisor to entrepreneurs, investors, and management teams.
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Andrew
Yang

Associate Attorney
Andrew brings a computing background to his corporate, commercial, and data privacy work for O&A’s clients.
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Vivian
Le

Associate Attorney
Vivian is a corporate and commercial associate, and works on mergers and acquisitions, venture financings, and licensing and commercial agreements.
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CLAUDIA
HERRERA

Associate Attorney
Claudia is a corporate and commercial attorney with a background in transactional corporate, intellectual property, and entertainment law.
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Sharthak
Mukhopadhyay

Associate Attorney
Shar is a corporate and commercial associate attorney whose practice includes venture financings, matters related to cryptocurrency, mergers and acquisitions, corporate governance, and entity formation.
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Liana
Minassian

Associate Attorney
Liana is a corporate and commercial associate attorney at O&A, P.C. Her practice includes mergers and acquisitions, venture financings, corporate governance, entity formation, and licensing and commercial agreements.
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Alisa
Esala

CFO & Vice President
Alisa is the CFO and vice president of operations for O&A, P.C., and its affiliates, Blue Heron Ventures, Inc., and StartupProgram.com, Inc. 
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Joyce
Luong

Head Paralegal
Joyce assists with the firm’s StartupProgram.com, corporate filings and maintenance, overseeing management of the firm’s corporate dockets and contracts administration.
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AARON
KUNITOMO

VICE PRESIDENT
Aaron oversees O&A’s StartupProgram.com, maintains the firm’s corporate records, and assists with corporate filings.
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Kellie
Davis

Paralegal
Kellie is a corporate paralegal whose responsibilities include corporate filings, corporate maintenance, and maintaining the firm’s corporate docket.
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Simone
Ritchie

Paralegal
Simone's responsibilities include supporting all the firm’s attorneys; corporate filings; overseeing digital filing, 83(b) tax filings, blue sky filings, and state notices; and project tracking for financing rounds.
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Mayra
Ramsey

Paralegal
Mayra is a corporate paralegal at O&A, P.C. She assists with a variety of tasks including the firm’s StartupProgram, corporate filings and maintenance, and management of the firm’s corporate dockets.
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* Pending California Bar admission