Shaun O. Callahan is a Partner who leads GLP Attorneys’ Vancouver and Portland offices and the Oregon practice for the firm.
Shaun Callahan is an experienced personal injury attorney who has dedicated his career to representing people whose lives have been forever changed by the negligence of others. For nearly a decade, he has successfully advocated for clients injured in automobile collisions, dog attacks, and premises liability incidents, guiding them through every stage of recovery with empathy, skill, and determination.
Shaun is licensed to practice law in both Washington and Oregon and proudly serves as Leader of GLP Attorneys’ Oregon Practice, expanding the firm’s commitment to client advocacy across state lines. In this role, he oversees the firm’s Oregon operations, builds relationships with local providers and community partners, and ensures that clients throughout the state receive the same high-quality representation for which GLP Attorneys is known.
Shaun’s decision to become a personal injury attorney is deeply personal. As a teenager, his grandparents were seriously injured in a car crash, and he witnessed firsthand the physical, emotional, and financial toll it took on their lives. That experience inspired him to dedicate his career to helping others navigate similar hardships and to fight tirelessly for fair compensation and justice. His compassion for clients, combined with his fierce advocacy against powerful insurance companies, defines his approach and drives his success both in and out of the courtroom.
In addition to his active litigation practice, Shaun leads GLP Attorneys’ Legal Internship Program for the South Sound region, providing hands-on mentorship and meaningful legal experience for law students pursuing careers in personal injury law.
A proud “double Dawg,” Shaun earned both his Bachelor’s degree in Political Science (2011) and his Juris Doctorate (2014) from the University of Washington. During law school, he won the university’s negotiation competition and interned with Intellectual Ventures and Avalara, Inc. Prior to joining GLP Attorneys in 2016, he practiced with the Johanson Law Group in Edmonds.
Shaun has been an Eagle Member of the Washington State Association for Justice (WSAJ) since 2015 and has been recognized as a Rising Star by Washington Super Lawyers every year since 2019—an honor awarded to only the top 2.5% of attorneys in the state.
Shaun is one of the co-founders of the Husky Traders, a UW Finance Association that remains the premier finance club at the University of Washington. When he’s not working, Shaun loves playing sports, traveling, and meeting new people. Other than that, Shaun can also often be found being forcibly marched on a grueling hike by his loving wife.
"I would highly recommend GLP Attorneys. Shaun and David were amazing throughout the process. This is a top-notch group! Many thanks to everyone."
"Shaun Callahan and the team in Vancouver were beyond amazing! I felt totally supported throughout the process, and it couldn’t have been easier to communicate with them. I am forever grateful for your help and support and will always recommend your team!"
"Shaun Callahan and his team are very good attorneys—really helpful, nice, and did a great job! I highly recommend them!"
"5 Stars!"
"I really appreciate Shaun Callahan. I never worried about anything because I was well-informed by Shaun. I felt like he really cared about my well-being, and I was grateful that he took the time to get to know me and my family."
"From the very first phone call to the last, Shaun Callahan and the staff were very kind, understanding, and worked efficiently to help us. They genuinely cared about us. I highly recommend GLP Attorneys. Thank you for everything you have done for us."
"Best injury attorney out there! I was involved in a really bad car accident that left my upper body handicapped. I was fortunate enough to find Shaun Callahan with GLP Attorneys. I highly recommend them!"
"Shaun did an excellent and outstanding job as my attorney. My only wish is that I contacted him sooner! Thank you for your help."
"My attorney and his staff were very wonderful to work with on my case. If I need a personal injury attorney, I'll definitely be reaching out to GLP!"
"Shaun at GLP did an awesome job representing my son and always made sure my questions were answered! Thank you for your services!"
"Shaun was amazing! I definitely would recommend anyone to him."
"I would recommend Shaun and his entire team to anyone. Thank you, Shaun, for getting my case resolved quickly."
"I highly recommend Shaun Callahan. He relieved a lot of time, stress, and worry of dealing with my auto accident claim. Shaun is a highly skilled attorney and an excellent advocate for his clients!"
"Excellent service by Shaun Callahan. I received the best outcome and it was way better than ever anticipated for my case. Very glad I contacted GLP vs. going at it myself. Definitely will recommend them."
“I must say [Shaun] was the most professional, communicative and results oriented one I have come across. I have nothing but good things to say about him and my experience with GLP [Attorneys]. After my first consultation with him I knew I made the right choice.”
“We just wanted to thank you for all of your excellence and hard work. Our family truly appreciates everything you have done for our son. God bless you Shaun, you are truly an outstanding and professional attorney.”
“Shaun was my injury lawyer. He was great! He was compassionate and responsive. Even during Covid, Shaun and his team were responsive.”
“We were involved in a car accident. We spoke with Shaun Callahan of GLP attorneys and we felt confident that he could help us. Shaun kept working hard, through COVID to pursue every avenue to settle our claim. He did successfully negotiate the settlement!"
“GLP attorneys immediately lifted the enormous burden of stress! [They had] outstanding professionalism, compassion, and were very thorough in the entire path of my medical process! I appreciate very much every level of GLP Attorneys’ [process]."
“My partner was hit by a drunk driver. He underwent several surgeries and was unable to resume his regular life. We finally settled for way more than expected thanks to this amazing team. We highly recommend this company to anyone who wants to win."
