Morgan Gillmor

Michael O’Bryan is a partner in the firm’s Corporate Department. His practice focuses on U.S. and international mergers, acquisitions, divestitures, and other strategic transactions, including “going private” and other related party transactions. He has been involved in more than 350 M&A transactions, advising companies, boards, and special committees, as well as investment banks, in both negotiated and contested transactions. Mr. O’Bryan has worked extensive...

Gregory B. Caligari is a top attorney recognized by Best Lawyers in the practice area(s) of Land Use and Zoning Law and Real Estate Law. Gregory B., who practices law in San Francisco, California, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Gregory B. is held by other top lawyers in the same geographic and legal practice area.

Ross focuses his practice on complex commercial litigation with an emphasis on defending products liability and health effects claims. What do you focus on? For two decades I have represented large and small businesses across a wide range of industries, including energy companies, vehicle manufacturers, contractors, distributors and property owners. A significant part of my work includes national strategy and coordination of mass tort personal injury litigation. From trials to appeals, I defe...

Peggy Otum is co-chair of WilmerHale’s Energy, Environment and Natural Resources Group. Ms. Otum represents large corporations, public companies and universities in federal and state environmental enforcement matters and litigation.

John Bartko is a Founder and a Principal of the firm. He represents both plaintiffs and defendants in complex civil, criminal and regulatory matters. He has represented many executives ensnared in complex regulatory investigations and has been involved in significant international discovery and complex investigations requiring foreign court appearances, including conducting examinations in Switzerland and Japan through pioneering requests for civil judicial assistance. He has traveled to Euro...

Kerry E. Shea is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law. Kerry E., who practices law in San Francisco, California, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kerry E. is held by other top lawyers in the same geographic and legal practice area.

Matthew Gray focuses his practice on land use entitlement processing and litigation. He represents a range of local agencies, real estate developers and landowners in all stages of the land use entitlement and development process. He assists clients in negotiating and securing approval of development agreements, general plan amendments, specific plans, zoning, subdivision approvals, and annexation of property into cities and special districts; regularly appears before planning commissions and...

Stacey Wright is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law. Stacey, who practices law in San Francisco, California, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stacey is held by other top lawyers in the same geographic and legal practice area.

Sarah Hamilton is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Sarah, who practices law in San Francisco, California, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sarah is held by other top lawyers in the same geographic and legal practice area.

Judy Keyes is a labor and employment lawyer who partners with employer-clients to navigate the complex system of laws and regulations that govern the California workplace. She is recognized for her "out-of-the-box" thinking and ability to solve complex human resources and labor relations problems in effective and efficient ways. She counsels clients on how to avoid and respond to discrimination, harassment and retaliation claims; comply with wage and hour laws (e.g., exempt vs. nonexempt, ind...