diemer wei llp san jose

diemer wei llp san jose california




Mary Grace Guzmán

San Jose, California

Mary Grace Guzmán represents attorneys and attorney applicants before the State Bar of California. She also advises law firms clients on legal ethic issues such as conflict of interest issues, fee disputes. She also acts as outside ethics counsel for law firms. Mary Grace provides MCLE courses on Legal Ethics, Competency, and the Elimination of Bias. She is on Contra Costa County’s Bar Associations Diversity Committee, Barristers Section Board and former Co-chair of Contra Costa County Bar Association’s Committee of Delegates.

Mary Grace has been named to the Northern California Super Lawyers Rising Star for Professional Liability since 2015.

Mary Grace graduated from the University of California, Berkeley with a Bachelor’s degree in Anthropology and a minor in Chicano/a Studies in 1996. After working as a teacher, Mary Grace returned to law school and obtained her Juris Doctorate from Santa Clara Law with a certificate in Social Justice in 2008.

Areas of Practice

Legal Ethics

State Bar Defense

Moral Character Representation

Bar Admissions

California, 2010


Santa Clara Law

J.D. - 2008

University of California, Los Angeles

Bachelor's Degree - B.A. – Anthropology, 1996


“Rule 1.18: Guess what? You have a duty to prospective clients,” Contra Costa Lawyer Magazine, February 2019.

“Lawyers Get Crafty,” contributed journal slide, American Bar Association Journal Website, January 2018.

“A Local Lawyer’s Thoughts on Last Month’s Tragedies,” Contra Costa Bar Lawyer Magazine, August 2016.

“Where Do I Deposit My Retainer?” MCLE Self Study: Contra Costa County Bar Association MCLE Spectacular, November 2011.

“Moral Character: The Other Bar Exam,” The Advocate, with Lindsay Kohut Slatter, April 2013.