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About the firm

About LEOS

LEOS is legal for startups and small businesses. Licensed attorneys do the work, and our software keeps every question, contract and decision in one place.

Our attorneys

LEOS is led by its partners, who review every new matter personally and stay involved from the first message to the last.

  • Portrait of Sam Oh

    Sam Oh

    Partner

    Sam is an Illinois-licensed attorney and co-founder of LEOS. He has worked at Fish & Richardson, Latham & Watkins, and Avantech Law, and brings an engineer’s eye to litigation strategy — so clients get judgment and advocacy, not paperwork for its own sake.
  • Portrait of Ke Ma

    Ke Ma

    Partner

    Ke is an Illinois-licensed attorney and co-founder of LEOS. A Northwestern Law graduate, he previously worked at McKinsey & Company and as an Assistant State’s Attorney in Cook County. He focuses on building clear case strategy and keeping clients informed at every step.

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