Bill’s nearly forty years of legal experience has been primarily in the areas of maritime and general civil litigation. He previously headed a very successful and globally recognized marine and energy practice of a large West Coast based law firm. Bill primarily represents multinational companies involved in international trade and marine transportation as well as oil companies and marine and energy underwriters in connection with commercial disputes, casualties, personal injuries and environmental matters. Bill has significant trial experience in both the state and federal courts of California where he holds the highest, “AV Preeminent” rating by Martindale Hubbell.

Bill Collier_Collier Walsh Nakazawa

Born in Galveston, Texas, Bill graduated from Rice University in Houston, Texas where he was President of Sid Richardson College and Chairman of the University’s Honor Council. Prior to moving to the U.S. West Coast, Bill served as in-house counsel to the El Paso LNG Co. in Houston.


Bill has been recognized repeatedly as one of Southern California’s “Super Lawyers” by the editors of Law and Politics Magazine and for more than 20 years by Best Lawyers in America, a publication of Woodward White.


  • Texas

  • Louisiana

  • California (all state and federal courts) and Ninth Circuit Court of Appeals


  • J.D., Tulane University in New Orleans, 1978

  • B.A., English, cum laude, Rice University, 1975


  • Maritime Law Association of the United States, Proctor Member

  • Cedars Sinai Health System, Board Member

  • Torrance Memorial Medical Center, Board of Trustees and past Chairman

  • International Trade Education Programs, Past Chairman

  • Coast Guard Foundation, Director

  • Long Beach Convention and Visitors Bureau, Immediate past Chairman

  • Los Angeles World Trade Week (2009), Chairman

  • American Maritime Cases, Associate Editor


Bill Collier QR Code

DIRECT:  (562) 317-3302

MOBILE:  (760) 500-2952




Joe’s practice involves a full range of maritime, energy and environmental matters. He is perhaps best known for his considerable experience in oil and chemical spills, casualty investigations, crisis response and litigation stemming from maritime and industrial casualties. Joe has significant trial, arbitration and public hearing experience relating to admiralty/maritime cases, environmental pollution matters, commercial and construction disputes, personal injury and regulatory proceedings including those before the U.S. Coast Guard, South Coast Air Quality Management District and Cal-OSHA.


Jow Walsh_Collier Walsh Nakazawa

Joe has served as lead counsel for Responsible Parties and their underwriters involved in marine and on-shore pollution incidents, coordinating Unified Command activities, managing and defending third-party claims, and challenging and negotiating Natural Resource Damage Assessments. Joe has also defended against civil and criminal enforcement actions initiated by federal, state and local agencies relating to pollution, illegal dumping and alleged violations of federal and international environmental laws (“MARPOL”). He has led internal investigations and environmental audits and has implemented environmental compliance programs in defense of these actions. Joe has also represented parties alleged by the California Air Resources Board (“CARB”) to have violated state emission laws including non-compliant fuel use and at-berth/cold ironing requirements.


  • California (all state and federal courts) and Ninth Circuit Court of Appeals


  • J.D., cum laude, University of Arizona, James E. Rogers College of Law, 1989 

  • B.S., Honors, Nautical Science/Marine Transportation, US Merchant Marine Academy, 1983 


  • Maritime Law Association of the United States, Proctor Member, Inaugural Chair of Special Committee on Maritime Cyber Security and former member of the Board of Directors (2012-2015) 

  • Port of Los Angeles-Long Beach Chapter of the Propeller Club of the United States, Board of Governors 

  • Central CA Area Maritime Security Committee (AMSC), Cybersecurity Subcommittee 

  • Women’s International Shipping and Trading Association, USA 

  • American Legion Post 291, Newport Beach 

  • Surface Navy Association 

  • Association of the U.S. Navy 


Joe Walsh QR Code

DIRECT:  (562) 317-3301

MOBILE:  (310) 650-1242


Alan is engaged in maritime, general transportation, commercial and environmental law practice. His practice includes cargo and freight matters, maritime lien enforcement, charter party disputes, bills of lading issues, arrests and attachments, pollution, customs and immigration matters. He has represented shipowners with regard to oil spill litigation, including investigations, Coast Guard proceedings and law enforcement proceedings, as well as dealing with related governmental and media interests. He has extensive experience litigating in federal and state courts, has a series of successes in the Ninth Circuit Court of Appeals and a significant maritime decision in the United States Supreme Court.

Alan Nakazawa_Collier Walsh Nakazawa

Alan obtained his undergraduate degree from Yale University with a specialty in American Studies law. He obtained his law degree from the University of Southern California Law Center.


Prior to joining Collier Walsh Nakazawa LLP, Alan was a founding member of Cogswell Nakazawa & Chang, LLP, and a partner in Lillick McHose & Charles.


Alan was a lecturer at the Norwegian Shipping Academy, International Bunker Conference, Oslo, Norway in 1992, and was an institute faculty member at the Tulane University Admiralty Law Institute in 2005 and 2011.


  • California (all federal and state courts), Ninth Circuit Court of Appeals and the United States Supreme Court


  • B.A. Yale University

  • J.D. University of Southern California Law Center


  • Maritime Law Association, Proctor Member


Alan Nakazawa QR Code


DIRECT:  (562) 317-3304

MOBILE:  (310) 503-6509




Barbara has spent her entire legal career advising and protecting the interests of businesses involved in the maritime industry. She advises vessel owners and operators, shipyards, marine underwriters, terminal operators, and other businesses involved in marine transportation in many areas affecting their operations, including commercial disputes, contract negotiations, risk management, and environmental issues. Barbara also advises clients in connection with Coast Guard investigations, regulatory compliance and legislative initiatives. She has provided advice and defense to a variety of maritime clients facing potential civil and criminal liability for oil spills and other marine pollution incidents. Barbara is active in issues affecting the maritime industry and has filed several amicus curiae briefs

Barbara Holland_Collier Walsh Nakazawa

on behalf of industry interests in cases before the U.S. Supreme Court. She also serves as General Counsel to a well-known Northwest shipyard.


Barbara received her law degree from Harvard Law School. She has been recognized for many years in The Best Lawyers in America, and was named "Lawyer of the Year" in the area of Admiralty & Maritime Law in 2017 and again in 2020. She has been repeatedly recognized for inclusion in The International Who's Who of Shipping & Maritime Lawyers, Washington Super Lawyers, and the Martindale-Hubbell Bar Register of Preeminent Women Lawyers.


  • Washington (all state and federal courts) and Ninth Circuit Court of Appeals

  • United States Supreme Court


  • J.D., Harvard Law School

  • B.A., summa cum laude, Politics, Wake Forest University


  • Maritime Law Association of the United States, First Vice President (2020-present); Second Vice President (2018-2020); Secretary (2016-2018); Membership Secretary (2012-2016); Board of Directors (2008-2011 and 2012-present)

  • The American Waterways Operators; Member, Board of Directors (2003-2005)

  • Women's International Shipping and Trading Association

  • Member, Stellar International Delegation of Women Business Leaders to China led by U.S. Senator Maria Cantwell, 2006, 2008


Barbara Holland QR Code

DIRECT:  (206) 502-4251

MOBILE:  (206) 930-7331




Ellen represents international shipping, energy, industrial companies and their underwriters on maritime, oil & gas and environmental law issues, including litigation matters, incident investigations and pollution response. Ellen has significant experience in complex litigation and mass actions on behalf of Fortune 500 corporations stemming from products liability, toxic tort and environmental contamination.


Ellen also advises and represents clients on regulatory matters and development projects involving permitting and compliance with the National Environmental Policy Act (NEPA), California Environmental Quality Act (CEQA), and the defense

Ellen McGlynn_Collier Walsh Nakazawa

of legal challenges to such projects.


During law school, Ellen served as an Extern for Justice Alex McDonald on the 4th District Court of Appeal.


  • California (all state and federal courts) and Ninth Circuit Court of Appeals


  • J.D., cum laude, Thomas Jefferson School of Law in San Diego, California 2009. Notes Editor of Thomas Jefferson Review. Member of Moot Court Honor Society Executive Board. Selected as a Who’s Who? Among Law Students in American University and Colleges. Recipient of the Dean’s Scholarship

  • B.S., Business Administration – Finance, The Ohio State University, 2004


  • Maritime Law Association of the United States

  • Marine Underwriters of Southern California

  • National Association of Women Lawyers

  • Women Lawyers Association of Los Angeles

  • Women’s International Shipping and Trading Association, USA


Ellen McGlynn QR Code

DIRECT:  (562) 317-3303

MOBILE:  (310) 429-7124




Jensen is Of Counsel to Collier Walsh Nakazawa and is based in the Seattle-Tacoma area giving the firm extended reach and additional maritime and environmental capability. Prior to founding his own firm, Mauseth Legal, Jensen was an associate with a major West Coast maritime law firm and was very active in casualty response and maritime litigation. Jensen has represented plaintiffs and defendants in state and federal courts in a wide range of personal injury and commercial disputes.


In addition to his trial practice, Jensen has extensive business experience. He has managed multimillion-dollar companies, negotiated contracts worth hundreds of millions of dollars, and managed development and engineering teams. Jensen honed his management and finance skills at The Boeing Company. Starting in a specialized finance development program, Jensen moved throughout Boeing negotiating supplier contracts and working on large scale projects.

Jensen served as a law clerk to the Honorable Ricardo S. Martinez in the US District Court for the Western District of Washington.


  • Washington


  • J.D., magna cum laude, Seattle University School of Law

  • M.S., Finance, Seattle University Albers School of Business

  • B.A., Economics and Politics, Whitman College


  • National Order of Barristers

  • Federal Bar Association

  • Washington State Bar Association

  • Snohomish County Bar Association

  • Washington State Association for Justice


Jensen Mauseth QR Code

DIRECT:  (206) 502-4252

MOBILE:  (425) 359-1189




Bradley is an Associate Attorney based in our Long Beach office. Prior to joining Collier Walsh Nakazawa LLP, Bradley was associated with a Los Angeles law firm where his practice focused on litigation defense primarily in premises liability matters as well as commercial trucking and motor vehicle accidents.

Bradley obtained his undergraduate degree from the University of California, Los Angeles. He obtained his law degree from Southwestern Law School.

During law school, Bradley served as an Extern to the Honorable Michael Whitaker of the Los Angeles County Superior Court. Bradley also interned with the in-house legal department of a well-known world-wide self-defense and fitness association.


  • California


  • B.A. University of California, Los Angeles

  • J.D. Southwestern Law School, Los Angele


Bradley Rankell QR Code

DIRECT:  (562) 317-3321

MOBILE:  (818) 661-8140




Jock is a marine insurance and claims specialist. A qualified master mariner with an MA in Maritime Policy, Jock has worked in all facets of the industry, including P&I, legal, broking and underwriting, claims management, expert witness, policy and wording design.


Jock spent 13 years at sea, rising to Chief Officer, Master Mariner, sailing on most types of cargo ships. He then served ashore as a claims handler for an International Group P&I club and then later with a British law firm. Jock subsequently took a position as Insurance and Claims manager for a large

Jock Mawson_Collier Walsh Nakazawa

oceangoing shipping company. He was later appointed Managing Director for the insurance company subsidiary of a ship operator, rising to Vice President, Insurance & Claims for CP Ships, at the time a top 10 container ship company. As well as designing and placing the Company’s insurance program, Jock led a large claims team in the management of all marine and non-marine claims. Jock attended many significant incidents on site and personally handled large claims to conclusion through arbitration or court proceedings in the UK, USA, Greece, Italy and Australia.


Jock has served on many boards and committees, including marine insurance companies, the World Shipping Council, Maritime Law associations, and as the International Chamber of Shipping Delegate to UNCITRAL for the drafting of the new International Carriage of Goods by Sea instrument (The Rotterdam Rules).

As a consultant, Jock has served as an Expert Witness, Visiting University lecturer at MA and MBA levels and has represented the International Chamber of Shipping at the United Nations.


  • M.A., Maritime Policy, University of Greenwich, 2003


Jock Mawson QR Code

DIRECT:  (562) 317-3306

MOBILE:  (310) 498-2755