Matthew P. Guichard

Founder and Managing Partner


Partner Matthew P. Guichard is a nationally recognized trial attorney, and founder of Guichard, Teng, Portillo & Garrett, a full service law firm serving Northern California since 1996, with offices in Walnut Creek, San Francisco and Davis, California.

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Christopher K. Teng

Attorney, “Of Counsel”


Christopher K. Teng is an internationally trained attorney representing domestic and international businesses in litigation and business transactions.
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William L. Portello

PortelloAttorney, “Of Counsel”

William L. Portello is an experienced civil litigator, specializing in personal injury claims, business litigation, family law and consumer transaction litigation.
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Erika Portillo

Erika picPartner


Erika Portillo is a highly experienced immigration attorney whose interest and passion in law makes her a skillful advocate on behalf of her clients.     Read More »