Donna Chamberlin


  • location icon Seattle, WA
    1111 Third Avenue
    Suite 2700
    Seattle, WA 98101

Donna Chamberlin is a partner in the Seattle office of Lewis Brisbois and a member of the Commercial Litigation Practice. Ms. Chamberlin's law practice is informed by her experience as a chemical engineer in which she has worked as a process design engineer in an oil refinery and then as an economics planner for one of the world's largest oil companies. She is also a registered patent attorney. Ms. Chamberlin's experience in chemical engineering, business, and insurance allows her to handle matters across the practice lines of environmental, insurance bad faith, coverage and defense litigation. Her technical and litigation experience includes environmental site contamination, industrial accidents, business dissolution, and intellectual property matters. She has successfully litigated cases through trial in state and federal courts, and has secured summary judgments that have been affirmed on appeal in the areas of insurance coverage, general and products liability, and intellectual property.

In the insurance context, Ms. Chamberlin represents clients in the areas of underinsured motorist, homeowner, commercial and general liability matters that often have technical overlays. This includes the representation of clients in declaratory judgment actions, insurance contract disputes, and defense actions for environmental site contamination, industrial accidents, home-owner and construction defect disputes. She also represents clients in the defense of clergy malpractice, products liability, asbestos and mold exposure claims.

In the environmental context, Ms. Chamberlin has litigated cases through mediation, summary judgment, and trial in insurance coverage and declaratory judgment actions for some of the nation's largest Superfund sites. She has also represented clients in citizen suits under the Clean Water Act and against liability under the Washington Model Toxics Control Act ("MTCA") for both large and small sites. In the real estate context, Ms. Chamberlin has worked with clients to negotiate allocation of site clean-up costs, easements and trespass claims, insurance coverage workouts, and contract analysis for property sales agreements. She has also represented major manufacturing companies in toxic tort cases and secured summary judgment in major product liability exposure cases.

In the commercial context, Ms. Chamberlin represents clients' interests in breach of fiduciary, receivership, limited liability and corporate dissolution actions. She has also negotiated, drafted and enforced intellectual property agreements. She has successfully litigated patent, trademark, and copyright matters in federal courts and before the Trademark Trial and Appeal Board, and secured summary judgment and appellate rulings to protect her clients' rights in the United States District and Circuit Courts.

Representative Cases

  • Allianz Global Risks U.S. Ins. Co., et al. v. ACE Property & Cas. Ins. Co., et al., Circuit Court of Oregon, Case No. 1204-04552 (2014). Secured dismissal of certain claims and jury verdict dismissal of certain insurance policies in contribution action for Portland Harbor Superfund liabilities and more than 1,500 underlying asbestos claims in suit involving six-week jury trial.
  • Bolin v. Seaview Chevrolet, 128 Wn. App. 1031 (2005). Secured summary judgment dismissal, affirmed on appeal, in insurance coverage action for auto accident of a minor child.
  • Century Indemnity Co. v. The Marine Group, LLC, et al. No. 3:08-CV-1375-AC, 2013 WL 5838991 (D. Or. Oct. 29, 2013). Represented insurers under commercial general liability policies for Superfund liabilities including new precedent on the duty to defend and denying insured requested injunctive relief.
  • Newmont USA Ltd. v. American Home Assur. Co., 795 F. Supp. 2d 1150 (W.D. Wash. 2011). Defended insurer under commercial general liability policies for Superfund liabilities for mining site, drafting summary judgment motion that resulted in favorable settlement.
  • Northwest Natural Gas Co. v. Associated Electric & Gas Ins. Serv. Ltd., et al., Circuit Court of Oregon, Case No. 1012-17532 (2014). Represented insurers under commercial general liability policies for underlying Portland Harbor Superfund and upland liabilities.
  • Rose v. Seventh-day Adventists, 127 Wn. App. 1046 (2003). Secured summary judgment dismissal under First Amendment, affirmed on appeal, for sexual abuse and negligent church supervision case related to murder of a parishioner and attempted murder of second parishioner.
  • Stutz v. Port of Pasco, 132 Wn. App. 132 Wn. App. 1036 (2006). Secured summary judgment dismissal.
  • Vantage Trailers, Inc. v. Beall Corp., 567 F.3d 745 (5th Cir. 2009). Secured dismissal for lack of subject matter jurisdiction, affirmed by the Fifth Circuit, of design trademark infringement and false patent marking claims.



United States Patent and Trademark Office

United States District Court for the Eastern District of Washington

United States District Court for the Western District of Washington

Fifth Circuit Court of Appeals

Ninth Circuit Court of Appeals


  • Washington State Bar Association
  • Washington Defense Trial Lawyers Association
  • Washington State Patent Lawyers Association

Awards & Honors

  • Advanced Moot Court, Rutgers School of Law
  • Top Ten Oral Argument, Rutgers School of Law


Rutgers School of Law

Juris Doctor

Salzburg Austro-American University-McGeorge School of Law

Certificate in International Legal Studies

California State University, Long Beach

Bachelor of Science in Chemical Engineering 

  • Minor in Chemistry

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