About Our Firm

Andrew D. Hallman is an attorney, mediator and arbitrator based in Pendleton, Oregon, providing dispute resolution services throughout Eastern Oregon and statewide via Zoom. With a practice grounded in both courtroom experience and judicial service, he works with parties and counsel to resolve civil disputes efficiently, thoughtfully, and with an emphasis on practical, durable outcomes. His approach to mediation and arbitration is defined by careful preparation, direct communication, and a clear understanding of how cases are evaluated and resolved in real-world litigation settings.

Andrew serves as a neutral across a broad spectrum of civil matters, including personal injury, employment disputes, insurance coverage and bad faith claims, civil rights litigation, business and commercial conflicts, professional negligence, and probate and estate disputes. He offers in-person mediations across Eastern Oregon while also maintaining the flexibility to conduct remote sessions statewide via Zoom, ensuring accessibility for clients regardless of location.

His work as a neutral is informed by more than two decades of high-level litigation and public service. Andrew currently serves as a part-time United States Magistrate Judge for the District of Oregon, a role he has held since 2021. Prior to his appointment, he was the Assistant Attorney in Charge of the Civil Litigation Section at the Oregon Department of Justice, where he led complex litigation involving civil rights, governmental liability, and corrections. Over the course of his career, he has developed extensive trial and case management experience in both state and federal courts and has facilitated more than 100 mediations and arbitrations. This depth of experience provides valuable perspective to parties seeking resolution outside of traditional litigation.

Andrew’s professional training includes mediation and settlement coursework through The Ohio State University Moritz College of Law, University of Oregon School of Law, the Oregon Department of Justice, and the Administrative Office of the United States Courts. He is also a member of Arbitration Services of Portland and serves on the Oregon Court of Appeals Settlement Conference Program panel. He earned his Juris Doctor from the University of Oregon School of Law and holds a Bachelor of Science in Political Science from the University of Oregon.

In addition to his work as a mediator and arbitrator, Andrew maintains a selective legal practice that complements his dispute resolution services. He advises clients on estate planning, helping individuals and families structure plans that protect assets, minimize conflict, and provide clarity for future generations. He also assists with probate and trust administration, guiding clients through what can often be complex and emotionally charged processes with a focus on efficiency and careful stewardship. His practice further includes business planning and transactional work, where he helps clients form, structure, and manage their business affairs with an eye toward long-term stability and risk mitigation. This broader legal experience enhances his effectiveness as a neutral, particularly in disputes involving estates, fiduciary duties, and closely held businesses.

Andrew is also actively engaged in professional and community service. He is a member of the Oregon State Bar and the Federal Bar Association, reflecting his ongoing commitment to the legal profession at both the state and national levels. In his local community, he has volunteered as a mock trial coach with the Pendleton School District, helping students develop advocacy skills and an understanding of the legal system. He has also been involved with the Pendleton Youth Soccer Association, supporting youth athletics and community engagement, and with the Boy Scouts of America, contributing to leadership development and service-oriented programming for young people.

Andrew is based in Pendleton and is available for in-person sessions throughout Eastern Oregon, as well as remote mediations and arbitrations statewide. His rate for mediations and arbitrations is $250 per hour, typically shared among the parties unless otherwise agreed. He can be reached at ahallman@blancfirm.com or by phone at (541) 215-4810 to schedule services.

Due to his role as a part-time United States Magistrate Judge, Andrew is not available to serve as a private mediator in cases filed in the United States District Court for the District of Oregon. Requests related to such matters must be made through the court.