About Gerald L. Warren and Associates


Gerry Warren has an extensive career as a trial and appellate attorney since 1981. Before his move to private practice, he worked for 17 ½ years as an attorney for City/county Insurance Services (CIS) until August 2009 when he left to start his own firm. He continues to represent Oregon Cities and Counties in all state and federal trial and appellate courts. He received a Bachelor of Science Degree from Willamette University in 1978 and his Doctor of Jurisprudence in 1981 from Willamette College of Law.

After law school, Gerry spent several years on active duty as an Army Judge Advocate General (JAG) Officer including as a prosecutor in Hanau, then West Germany for three years. He was then selected for assignment to the Army’s Litigation Division at The Pentagon in Washington, DC where he primarily defended medical malpractice claims in conjunction with the US Department of Justice. His last military duty assignment was his appointment by Governor John Kitzhaber as the Oregon National Guard’s State Judge Advocate in August 2001.  He served in that position until his retirement in October 2005.

Gerry graduated from the U.S. Army War College in 2003 with a Master’s Degree in Strategic Studies. He retired from the Army National Guard at the rank of Colonel with over 34 years of military service. He has successfully handled hundreds of cases in state and federal trial and appellate courts representing Oregon Cities and Counties almost exclusively since 1992. Gerry is married to Luanne Warren and has four adult children, two sons and two daughters.


Aaron Hisel brings a wealth of experience to this primarily public body defense firm.  Before attending law school at Willamette University, Aaron worked as a Sheriff’s Deputy for the Los Angeles County Sheriff’s Department in California.  While with the Sheriff’s Department, Aaron graduated from the POST Academy, and was assigned to one of LA County’s jails.  Aaron was promoted to the Central Housing Unit where he worked on identifying and remedying the many classification and housing issues that arise in one of the world’s largest jail systems. He left LA to get closer to home and to work as a police officer for the City of Renton, Washington. During Aaron’s time with the Renton Police Department, he served in many roles including patrol, bicycle patrol, undercover and as a member of the Valley SWAT team.  Aaron was the 2009 Renton Police Officer Guild’s “110% Award” winner.

While in law school Aaron carried a heavy load by working simultaneously as a law clerk for the Law Office of Gerald L. Warren and the Clackamas County District Attorney’s Office, and as a student assistant for legal research and writing classes. During his time with the Clackamas County DA’s office, Aaron successfully prosecuted several criminal trials.  Aaron graduated a semester early from Willamette, finishing in the top ten percent of his class.  Aaron began his legal career when he was sworn in to the Oregon State Bar on April 28. 2016.

In addition to his Doctor of Jurisprudence degree from Willamette University, Aaron received his Bachelor of Arts degree in Human Development from Washington State, and a Master’s degree in Criminal Justice from Tiffin University, Ohio.  He is dedicated to his law career like few others.  Aaron is married to Brittany Hisel and is the proud father of two daughters and one son.  


Kenny Montoya joined the Law Office of Gerald L. Warren and Associates on November 26, 2018 after several years of public body litigation defense and general counsel work.  His last position at Marion County was as Senior Assistant Legal Counsel, where he was the County’s litigation attorney representing the County and its employees in state and federal courts since January 2014.  Among his duties, Kenny provided general counsel advice and services to the Marion County Sheriff’s Office. He also served on the Task Force for the Oregon Association of Chiefs of Police and the Oregon State Sheriffs Association from January 2016 to February 2017 helping to develop a statewide policy framework for law enforcement leaders to use in creating policy and response decisions involving encounters with persons suffering a mental health or behavioral crisis. Kenny has taught multi-agency trainings on mental health response protocol considerations as well as use of force training for patrol and custodial facilities.

Kenny previously worked from 2009 to 2014 for the City of Salem as the City’s litigation attorney.  He represented the City in state and federal trial courts as well as before the Oregon Court of Appeals and Ninth Circuit Court. From 2006-2009, Kenny worked as an associate staff attorney for City County Insurance Services representing public bodies throughout Oregon.  Kenny is a former commissioner on the Oregon Government Ethics Commission and served as its Chairman in 2015. His experience also includes police officer reserve service and United States Marine Corps Reserve service. Kenny is married to Sandra Montoya and has two great college aged kids — one son and one daughter.


Beth Jones began her work for the Law Office of Gerald L. Warren and Associates as a law clerk in May 2018. Beth’s previous service as a City Councilor for the City of Dallas, Oregon from 2011 to 2014 has given her great insight and appreciation for public body defense work. Beth graduated summa cum laude from Corban University in 2010 and received her Doctor of Jurisprudence degree from Willamette University in May 2020. Beth served on the Polk County Commission for Children and Families as a Board Member in 2011-2012 and founded the Polk County non-profit Bambinos, serving low-income families in the area. A Statesman Journal Opinion article in May 2016 noted: “Beth Jones is impressive” and we agree. She passed the Oregon State Bar taken in February 2020 and was sworn in on May 21, 2020. Beth is married to Major Ray Jones, who works full-time for the Oregon National Guard and they have two great children, three dogs, two cats and a new found hobby of G scale trains.