Tyson & Mendes, a midsize, San Diego-born insurance defense firm, opened an office in Fresno last week with a six-attorney team from regional midsize firm Ericksen Arbuthnot.

The team is led by Dave Frankenberger, the former managing partner of Ericksen Arbuthnot’s Fresno and Bakersfield offices, and includes partners Michael Lehman, Brett Runyon, and Carol Ann Seita and two additional attorneys, as well as eight staff members.