Michelle S. Rhyu

When a company or its leaders are at risk, founding partner Daniel J. Bergeson uses his substantial litigation and trial experience to advocate for their rights and reputations in lawsuits involving securities, intellectual property, employment, private equity and venture capital, and commercial law. He focuses on the essential facts to persuade juries, judges, and triers of cases in state and federal courts and arbitration forums in Silicon Valley, Delaware, New York, and other dispute resol...

Lance A. Etcheverry is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Lance A., who practices law in Palo Alto, California, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lance A. is held by other top lawyers in the same geographic and legal practice area.

A seasoned trial lawyer with significant experience in both state and federal courts in Santa Clara County, Bill’s expertise in representing businesses and individuals in complex civil litigation has provided clients many noteworthy results. In addition, Bill works with individuals and families in cases involving litigation such as will contests, trust disputes, and related issues. Bill is often called into family law matters when specific litigation expertise is required in cases where...

Judith Hasko is the Chair of the Transactional Department and Co-Chair of WilmerHale’s Life Sciences Practice. She provides counsel to life sciences companies and their investors on strategic, intellectual property and technology-based commercial transactions. Companies in the biotechnology, pharmaceutical, medical device and diagnostic product sectors, along with their investors, depend on Ms. Hasko for guidance and execution of licensing, corporate partnerships, joint ventures, co-pro...

Quyen L. Ta is a top attorney recognized by Best Lawyers in the practice area(s) of Arbitration, Commercial Litigation, Litigation - Intellectual Property and Mass Tort Litigation / Class Actions - Defendants. Quyen L., who practices law in Palo Alto, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Quyen L. is held by other top lawyers in the same geographic and legal practice area.

Ed Wes is a partner in the firm's Business practice, who focuses his practice on emerging growth companies. Ed's practice includes capital formation (including private financings of debt and equity securities, as well as public offerings), mergers and acquisitions and business transactions including joint ventures and technology transfer transactions. In his position as general counsel for many of his clients Ed also oversees the work of litigation and IP law specialists. Ed particularly valu...

Allison M. Leopold Tilley is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law. Allison M. Leopold, who practices law in Palo Alto, California, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Allison M. Leopold is held by other top lawyers in the same geographic and legal practice area.

James F. Valentine is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property and Litigation - Patent. James F., who practices law in Palo Alto, California, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James F. is held by other top lawyers in the same geographic and legal practice area.

David A. Lipkin focuses his practice on mergers and acquisitions (M&A) and related securities law matters for companies in the technology and life sciences sectors. He represents both public and private acquirers and target companies, as well as special committees, in large, complex and sophisticated M&A transactions, including tender offers, negotiated mergers and other acquisition structures involving both strategic investors and private equity firms. Read full biography: https://ww...

Mark J. Mihanovic, head of the Firm’s California Transactions group, focuses his practice primarily in the areas of corporate finance and mergers and acquisitions. He represents companies in a broad range of industries, with a particular emphasis on technology, life science and health care companies. Read full biography: https://www.mwe.com/people/mihanovic-mark-j/