Dedicated to the safekeeping of your family, your business and your future

About Mendes Weed, LLP

Driven by a shared passion to help individuals, families, and businesses, Mendes Weed, LLP assists clients in securing a solid and healthy future through legal and emotional support. Mendes Weed, LLP was formed to offer a boutique law firm experience that could support their clients’ needs. Combined, Lisa and Christina have almost two decades of experience.

Christina Weed, Partner

Christina’s determination and knowledge make her a strong advocate for her clients and she aggressively defends their rights. She helps her clients better understand the law and ensure that it is being best applied to their situation.

Christina is a licensed attorney with an LL.M. in Taxation from the University of San Diego and a Bachelor’s Degree in Accountancy. She serves as Chair of the Tax Section of the Contra Costa County Bar Association and is also a member of the Estate Planning Council Diablo Valley and the Tri-Valley Estate Planning Council. Christina has also written, or been featured in, several publications.



Lisa Mendes

Lisa Mendes, Partner

Lisa is also known for her aggressive defense of her clients as well as her knowledge of the law and how it pertains to their situation. She advocates for the rights and well-being of her clients and that of their children and the elderly. She has a reputation for being a very fair negotiator and communicator with other lawyers and judges, which streamlines and expedites the process.

Lisa acts with compassion and understanding, while detailing in great depth the reality of the legal process and true expectations of the court process. She hopes that by being open and honest and communicative, her clients can move past this often difficult and emotional process efficiently to live the life they were meant to lead.

Lisa is a licensed attorney, with a Master’s Degree in Business Administration (MBA), and a Bachelor’s Degree in Spanish Language and Literature. She has litigated multiple bench and jury trials in civil and criminal court.  Lisa is an active member of the Contra Costa County Bar Association (CCCBA), specifically in the Family Law, Women’s, Tax and Estate Planning Sections. Lisa has written multiple articles for the Contra Costa Lawyer Magazine. She is a member of the Robert G. McGrath Inn of Court. Lisa advocates for proposed legislation and new laws as a member of the Contra Costa County Delegation of the California Conference of Bar Associations.

Diana Tarnopolskaya Mendes WeedDiana Tarnopolskaya, Associate

Diana Tarnopolskaya is an attorney licensed in the State of California. Diana enjoys helping clients plan for the future, provide for their loved ones, and ensure that their legacy is protected. She is passionate about preserving clients’ rights, wealth, and autonomy while remaining sensitive to the individual needs of family members and business owners. Diana assists clients with their family law, tax law, and estate planning needs. Diana brings a dynamic set of skills to the table and is able to assist clients with litigation, advocacy and transactional services.

Diana was born in Odessa, Ukraine and immigrated with her family to San Francisco in 1992. She received her B.A. in Business Management and Administration from Golden Gate University in 2011 and her Juris Doctor from Golden Gate University School of Law in 2015. Diana is fluent in both English and Russian. Diana is admitted to United States Tax Court.


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