Your Best Defense, Quantum Legal

When facing criminal charges, worker’s compensation, and personal injury in Washington, you don’t want just any lawyer. You need a team of local attorneys who understand local, state, and federal laws inside and out. At Quantum Legal, we offer our clients over 50 years of experience representing clients in the areas of life that affect them most.

When seeking legal advice regarding a recent criminal case, financial advice, or perhaps both, make Quantum Legal your first phone call. Our knowledgeable and reliable attorneys are here to help guide you through the legal process. You can rest assured that we will do everything in our power to get you the best results possible for your case.

Call our southeastern Washington office at (509) 783-5551 to schedule your no-cost legal consultation.

Mario Interiano

Mario Interiano attended Texas A&M University where he earned a degree in Mechanical Engineering. Soon after graduating, Mario was transferred to Thailand, where he managed multiple countries in Asia for a multinational corporation. After six years there, he was transferred to Chile where he carried out similar responsibilities. Mario decided to further his education and became an attorney licensed to practice in the State of Washington. Since 2007 Mario has been assisting clients in Eastern Washington and throughout the United States with claims related to personal injury workers compensation, wrongful death, and medical negligence; first as a Law Clerk for attorney Norma Rodriguez, and later on as a fully licensed attorney. He has recovered tens of millions of dollars in compensation for his clients during his career by using his legal, engineering, management, and negotiation background and experience.

Catherine Harkins

Catherine Harkins attended Eastern Washington University where she obtained her bachelor’s degree in Government with a minor in communications. In 2006, she received her Juris Doctor from Gonzaga University of Law. She was admitted to the Washington State Bar that same year. Since early 2007, she has worked as a criminal defense trial attorney.


Dennis attended Pacific Lutheran University where he obtained his Bachelor of Business Administration in 2004. In 2009, he received his Juris Doctor from the Thomas M. Cooley Law School in Lansing, MI., and was admitted to practice law in Washington state the same year. Since then, Dennis has been admitted to the U.S. District Court, Eastern District of Washington. His practice is focused on criminal and civil law (medical malpractice, automobile accidents, landlord/tenant and contract law), business formation, and estate planning.

Cirilo Gomez


Marisol Garcia

Legal Assistant

Jazmin Rebolledo


Adilene Carbajal


Julia Flores