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Solving legal
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since 1950

Attorney Information

100 Bush Street, Suite 900
San Francisco, CA  94104-3950
T: 415.887.8071
F: 415.362.6407

835 Wilshire Boulevard, 5th Floor
Los Angeles, CA 90017-2656
T: 415.887.8071
F: 213.489.4332


Practice Groups

Admitted to Practice
– All courts in the State of California

J.D., University of California, Hastings College of the Law, Note Editor of the Hastings International and Comparative Law Review
B.A., University of California, Berkeley


Gregory A. Mase is the newest partner at Ericksen Arbuthnot and the head of our Appellate Practice Group. He is resident in the San Francisco and Los Angeles offices. He has focused on civil appellate law for more than thirteen years, handling appeals in the state and federal courts of California. He has argued successfully before the California State Appellate Courts and the Ninth Circuit Court of Appeals. Mr. Mase combines his appellate practice with extensive trial court experience that spans over twenty years, mainly preparing dispositive motions such as demurrers and motions for summary judgment.

Mr. Mase finds that his clients receive increased efficiency when Ericksen Arbuthnot handles its lower court cases through to conclusion on appeal. Following is a list of some of Mr. Maseís recent appellate victories where Ericksen Arbuthnot represented its clients throughout the litigation process:

  • Good v. Miller (2013) 214 Cal.App.4th 472 (published) [Third Appellate Court dismissed opponentís defective appeal from trial courtís order issuing terminating sanctions for abuse of discovery process];
  • Ramirez v. On Assignment (2013) Cal.App. Unpub. LEXIS 940 [Second Appellate District affirmed trial courtís order granting motion for summary judgment on behalf of nurse in wrongful death case];
  • Medrano v. Flagstar Bank FSB (2012) ____ F.3d ____ (9th Cir.) (published) [Ninth Circuit affirmed district courtís order dismissing claims against real estate agents]; and
  • Sudol v. Sage-DeLuca Associates (2012) C071003 [Third Appellate District issued Palma order indicating its intent to issue a peremptory writ of mandate in the first instance reversing the trial courtís order denying defendantís motion for summary judgment].