A national law firm based in Richland has acquired another Tri-Cities law firm. 

Kennewick-based Purcell Law PLLC is now part of Gravis Law, according to a release. The acquisition expands Gravis’ family law services in Benton, Franklin and Walla Walla counties. 

Purcell Law was founded 10 years ago by attorney Matthew Purcell, who previously served as a judge pro tempore for the Benton-Franklin Superior Courts.  

“Mathew and his team have built meaningful trust through knowledgeable, compassionate service,” said Brett Spooner, founder and CEO of Gravis Law, in a statement. “Their local roots, family law experience, and commitment to client education make them an exceptional fit for Gravis Law.” 

Purcell and his staff will continue to serve their established clients who come to them for legal assistance navigating divorce, legal separation, child custody, adoption and other family law matters. He also will mentor and support attorneys across Gravis' growing family law practice, sharing his experience and expertise in family. 

“For nearly a decade, our team has been committed to being a steady, trusted resource for families during some of life’s most challenging moments,” Purcell said in a statement. “Joining Gravis Law allows us to continue that work while giving our clients access to additional resources and a broader team of support. I am excited about what this means for our clients, our team and the community we serve.” 

Gravis was founded in 2013 and is one of the largest law firms in the region, with 11 attorneys in the region prior to the Purcell Law acquisition, as well as offices across the West, according to the 2025 Book of Lists from the Tri-Cities Area Journal of Business. 

It was only a year ago that Gravis acquired Coke Roth Law, a Kennewick law office known for its work in estate planning and with a reputation for community service.  

Gravis was ranked No. 4,380 on this year’s list of the fastest growing companies from business magazine Inc., with 46% growth over the past three years. The firm appeared on the list for five years running until its absence in 2025.