Luis Arias

Adam Neufer is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Adam, who practices law in San Francisco, California, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Adam is held by other top lawyers in the same geographic and legal practice area.

Mitchell S. Griffin is a top attorney recognized by Best Lawyers in the practice area(s) of Admiralty and Maritime Law. Mitchell S., who practices law in San Francisco, California, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mitchell S. is held by other top lawyers in the same geographic and legal practice area.

Clients in the financial services industry rely on Jim McCabe’s acumen, gained after more than three decades of experience defending complex civil litigation, particularly with an emphasis on consumer financial products and consumer reports. Jim is a seasoned business litigator with decades of experience defending companies in class actions and other complex civil litigation involving consumer reports, consumer financial products, employment discrimination, insurance coverage, and vario...

Florence M. Jao is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Florence M., 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 Florence M. is held by other top lawyers in the same geographic and legal practice area.

Adam Alper is a leading member of the intellectual property litigation group in Kirkland’s Bay Area office. Focusing primarily on patent and trade secret disputes, and predominantly representing clients in the semiconductor, telecommunications, computer hardware and pharmaceutical industries, Adam regularly litigates high-stakes competitor cases involving concurrent claims of patent, trade secret and copyright violations. These disputes often involve co-pending actions in US District Co...

Jacobus D. Machalow is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Jacobus D., who practices law in San Francisco, California, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jacobus D. is held by other top lawyers in the same geographic and legal practice area.

Robert C. Herr is a top attorney recognized by Best Lawyers in the practice area(s) of Land Use and Zoning Law and Real Estate Law. Robert C., who practices law in San Francisco, California, has been recognized since 1987. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Robert C. is held by other top lawyers in the same geographic and legal practice area.

Spencer’s practice focuses on catastrophic personal injury and wrongful death cases involving defective products, vehicular collisions, dangerous conditions of public and private property, and medical malpractice. Outside of his practice at Walkup, he also teaches at the University of California-Berkeley Law School as a lecturer in trial advocacy. In addition to his teaching, he directs Berkeley Law’s external trial competition program and coaches multiple trial advocacy teams. Un...

Jordan Eth is Chair of the firm's Securities Litigation, Enforcement, and White-Collar Criminal Defense Group. He is one of the nation's leading securities litigators, representing public companies and their officers and directors in securities class actions, SEC investigations, derivative suits, mergers and acquisitions litigation, and internal investigations. In 2008, Mr. Eth received aCalifornia Lawyer Attorney of the Year Award for co-leading the successful defense of JDS Uniphase Corp. a...

James J. Brosnahan is named among the top 30 trial lawyers in the United States, according to the Legal 500 US . A lion of the trial bar , James J. Brosnahan is one of the most respected and recognized trial lawyers in the United States. Mr. Brosnahan has more than 50 years of experience in both civil and criminal trial work. He regularly undertakes complex cases that are about to go to trial. He has tried, to conclusion, 150 cases. The cases have ranged from anti-trust to wire fraud and from...