Senior Counsel

Alan Diamond



Alan Diamond’s practice embraces civil appeals and writs in the federal and California courts, including the California Supreme Court and the United States Supreme Court, and pretrial and post-trial law and motion matters in the California trial courts and the federal district courts. Alan, who began his legal practice as a litigator on large-entity commercial disputes, is familiar with all aspects of a lawsuit from its pleading stage through pretrial discovery, law and motion practice, in-limine proceedings, trial preparation, post-trial motions, writs and appeals, and petitions for review and certiorari.

Alan graduated with a B.A. in political science from New York University. He graduated from George Washington University Law School, where he served as Managing Editor of the Law Review. Moving to the West Coast, Alan joined Loeb & Loeb in Los Angeles, devoting his practice to complex civil litigation. He later joined what was then Manatt, Phelps, Rothenberg & Tunney in Los Angeles, again concentrating on a variety of business litigation.

Deciding to take a break from legal practice, and to pursue a long-standing interest in legal history, Alan enrolled in Trinity Hall, one of the oldest colleges at Cambridge University, obtaining an L.L.M. with first-class honors and then a Ph.D. in Law, specializing in English Legal History. At the same time, he continued to keep his hand in law practice, serving as of counsel to O’Neill & Lysaght in Los Angeles during the summers, where he continued to handle complex business litigation as well as white collar criminal cases.

After returning to the United States, Alan continued to work at O’Neill & Lysaght, and, in 1997, he joined GMSR, finding there the perfect practice for reconciling his academic side with his advocacy side. And he even had a chance to apply his legal history learning, when, as one of the team of GMSR attorneys representing Anna Nicole Smith in her case before the United State Supreme Court, he confronted an issue involving the scope of the jurisdiction of the English Chancery and Ecclesiastical Courts in 1789.

On the academic side, Alan taught pre-trial and trial advocacy at the University of Southern California Law Center from 1982 to 1985, and was an adjunct professor there in 1985, teaching a course in English Legal History. While at Cambridge, he conducted legal history seminars at Corpus Christi College, Magdalene College, and Trinity Hall, and organized a major two-day academic conference, the proceedings of which were published in The Victorian Achievement of Sir Henry Maine, a volume Alan edited and to which he contributed the Introduction and one of the chapters, entitled “Fictions, equity and legislation: Maine’s three agencies of legal change.”

Speaking and Involvement

The Human Rights Act: The Practical Implications for British Policing – Learning from the U.S. Experience, London, England
Instructor, Univer­sity of Southern California Law Center (pre-trial advocacy) (1982-1985)
Adjunct Professor, University of Southern California Law Center (English Legal History)
Supervisor, English Legal History, Corpus Christi College, Magdalene College and Trinity Hall, Cambridge (1987-1989)

Professional Associations

Association of Southern California Defense Counsel (ASCDC)
Defense Research Institute (DRI)