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Adam Siegler focuses his practice on civil litigation, with an emphasis on complex real estate and business cases. He has represented a wide variety of clients in the real estate, telecommunications and manufacturing fields. His litigation experience includes jury and bench trials in both state and federal courts, arbitrations, special proceedings, writs and appeals.


  • Real estate litigation, including acquisitions, brokerage claims, workouts, foreclosure and guaranty litigation
  • Construction litigation, including industrial, commercial and multi-unit residential
  • Partnership and corporate litigation, including closely held corporate control disputes



  • Represented and obtained summary judgment for Aspen Pacific Capital (Guggenheim) fund and numerous affiliates in workout and recovery litigation, involving an $80 million loan portfolio for 2000+ acre residential, multi-phased tract developments located in Imperial County, California, resulting in complete defense of $65 million claim involving complex anti-deficiency and alter ego issues.
  • Successful defense and settlement of $73 million foreclosure and guaranty case involving 3,300 acre residential and commercial project.
  • Representation of developer of waterfront condominium complex in Long Beach, California against claims in excess of $20 million brought by homeowner’s association to challenge monthly compensation owed to developer from inception of complex through 2041. After three week trial, and multiple appeals, defeated claims for disgorgement of past fees paid, and as part of appellate team, obtained published decision which ordered payment of more than $30 million owing to the developer.
  • $1.2 million award for Los Angeles Export Terminal in construction litigation arising out of the petroleum coke handling facility in the Port of Los Angeles, including complete defense against $10 million cost-overrun claim by general contractor.
  • Successful defense and favorable settlement of $4.5 million construction defect claims and cross-complaints for developer of large residential project.
  • Successful defense and favorable settlement of construction defect claims and cross-complaints for developer of large residential project.
  • Favorable settlement for upscale mobile home park owner in multi-million dollar defect claim by large group of homeowners.
  • Successful defense of material supplier in luxury condominium project construction defect case.
  • Successful representations of builders and owners in premium hillside home disputes, including defect claims and construction management issues.
  • Secured defense verdict in federal jury trial, on behalf of Ocean Spray Cranberries, Inc., in defense of $18 million claim under the Lanham Act.
  • Second chair and lead on expert witnesses in successful defense of Tropicana Products Co., Inc. in Lanham Act federal jury trial, resulting in complete defense verdict on claims in excess of $10 million.
  • Second chair and lead on biochemical expert witnesses in successful defense of Welch Foods, Inc. in Lanham Act federal jury trial.
  • Successful trial defense of $4.5 million securities fraud claim against attorney.
  • Successful trial defense of AT&T in real estate claim for fiber optic placement for telephone company.
  • Colonel (Ret.), Judge Advocate, U.S. Army Reserve
  • Staff Judge Advocate, 335th Signal Command (Theater), Atlanta, Georgia
  • Deputy Command Judge Advocate, 11th Military Police Brigade, Task Force MP North, Baghdad, Iraq
  • Executive Officer and Legal Liaison for Bright Star 2005, a Multi-National Exercise involving 30,000 troops from 12 nations
  • Awards and Commendations include Legion of Merit, Bronze Star Medal, Meritorious Service Medal, Army Commendation Medal, and Iraq Campaign Medal

Recognition & Leadership

  • Recipient, County of Los Angeles, Supervisor Kathryn Barger, 5th District, Tribute to Veterans and Military Families, “Community Hero Award and Commendation,” 2023
    • Certificates of Recognition
      • United States Congress, Rep. Judy Chu, Ph.D., 28th District
      • United States Congress, Rep. Grace F. Napolitano, 31st District
      • California State Senate, Sen. Susan Rubio, 22nd District
      • California State Senate, Sen. Anthony J. Portantino, 25th District
      • California State Assembly, Assemblymember Mike Fong, 49th District
  • Recipient, Greenberg Traurig Lifetime Achievement Award for Pro Bono, 2021
  • Listed, Super Lawyers Magazine, Southern California Super Lawyers, 2020-2023
  • Recipient, Of Counsel of the Year, GT Pro Bono Awards, 2020
  • Team Member, U.S. News - Best Lawyers®, Best Law Firms Edition, "Law Firm of the Year," Real Estate - Litigation, 2017
  • Recipient, Alan K. Steinbrecher Volunteer Leadership Award, Los Angeles County Bar Association’s Armed Forces Committee, 2014
  • Recipient, Honorable Wiley W. Manuel Pro Bono Award, State Bar of California
  • Past President, Beverly Hills Bar Association 
  • Past Board Member, Board of Governors, Beverly Hills Bar Association
  • Past Chair, Entertainment Executive Committee, Beverly Hills Bar Association
  • Past Secretary and Board Member, High Tech Los Angeles Charter High School
  • Past Chair and Current Member, Armed Forces Committee, Los Angeles County Bar Association (LACBA)
  • Member, Loyola Law School Military Veterans Justice Project Advisory Group
  • Past Member, Board of Directors and Governance Committee, US VETS
  • Member, Chancery Club 
  • Member, American Bar Association, and Member ABA LAMP Committee for military personnel


  • J.D., magna cum laude, Loyola Law School, Los Angeles
    • Law Review editor
  • M.S., Strategic Studies, U.S. Army War College
  • B.A., History and Political Science, University of California at Los Angeles
  • Hon. William D. Keller, U.S. District Court for the Central District of California
  • California
  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. District Court for the Central District of California
  • U.S. District Court for the Eastern District of California
  • U.S. District Court for the Northern District of California
  • U.S. District Court for the Southern District of California
  • U.S. Court of Appeals for the Sixth Circuit
  • U.S. Court of Federal Claims
  • U.S. Court of Appeals for the Federal Circuit