Skip to content Tessan Wess


1300 SW Fifth Avenue
Suite 2000
Portland, OR 97201

701 Fifth Avenue
Suite 2100
Seattle, WA 98104


J.D., Nova Southeastern University, 2010

B.S., University of Central Florida, 2007


Super Lawyers® Rising Stars distinction in Civil Litigation, Construction Litigation, General Litigation, Personal Injury - Products, Professional Liability (2018, 2020-2023)


Tessan Wess is a Partner in the Portland office of GRSM with experience in Oregon, Washington and Florida courts. Tessan is a skilled advocate, with a proficiency in risk analysis and evaluation. She has a thoughtful and efficient approach to litigation that consistently results in optimal outcomes for her clients.  In her role as Partner, Tessan is engaged in all aspects of litigation and case management, where she strategically defends individuals and businesses in diverse practice areas, including:  

  • Premise Liability
  • Product Liability
  • Transportation/Trucking
  • Environmental/Toxic Torts
  • Commercial Litigation and Business Torts
  • Contracts
  • Professional Liability
  • Construction
  • Personal Injury/Wrongful Death

In addition to her role as a litigator, Tessan has served in various leadership roles throughout her career. She currently serves on the Board of Directors for the Oregon Association of Defense Counsel, a non-profit professional organization. Tessan’s dedication to her clients, community and peers has earned her the distinction as a Rising Star by Thompson Reuters Super Lawyers.


  • Oregon
  • Washington
  • Florida
  • U.S. District Court, District of Oregon
  • U.S. District Court, Eastern District of Washington
  • U.S. District Court, Western District of Washington
  • Ninth Circuit Court of Appeals


  • Director, Oregon Association of Defense Counsel
Publications & Presentations