LAWYER PROFILE

John "Jack" O'Brien

USA 2026

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Chambers ranking badge

Ranked in 1 practice area

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Registered Funds - USA - Nationwide

Band 5
Band 5

Individual Editorial

Jack O'Brien is sought after for his expertise in mutual and exchange-traded fund launches and 1940 Act regulatory work. He is co-leader of the firm's registered funds practice.

Strengths

Provided by Chambers

  • Jack demonstrates the ability to handle multiple novel, complex and sophisticated matters.

    Registered FundsChambers Guide to the USA

Ranked Individuals at Morgan, Lewis & Bockius LLP (330)

California

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