Konstantine Antony Demiris
The Demiris Law Firm, P.C. • Walnut Creek, CA
Elder LawGeneral Practice
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Contact
Email
Phone
(925) 592-3765
Address
700 Ygnacio Valley Road, Walnut Creek, CA, 94596, US
Professional
About
Konstantine "Kosta" Antony Demiris is a distinguished attorney at The Demiris Law Firm, P.C., located in Walnut Creek, California. With a robust foundation in general practice, Kosta has honed his expertise in various critical areas including elder law, elder abuse, conservatorships, will and trust litigation, general civil litigation, homeowners’ association (HOA) litigation, and appeals. His extensive trial experience is marked by a proven track record of successfully litigating multi-million dollar cases, demonstrating his tenacity and commitment to achieving favorable outcomes for his clients. Kosta's legal acumen is further evidenced by his remarkable success in defending all nine decisions in favor of his clients that have been appealed, showcasing his ability to navigate complex legal challenges with skill and confidence. He is deeply embedded in the Contra Costa County legal community and actively engages with fellow professionals to uphold the highest standards of legal practice. In addition to his legal practice, Kosta serves on the Board of Directors of various local organizations, reflecting his dedication to community service and advocacy. His strong educational background, which includes a law degree from Santa Clara University School of Law and an undergraduate degree from the University of California, Berkeley, complements his hands-on experience, making him a formidable force in the legal landscape. Kosta Demiris embodies the essence of a dedicated attorney, committed to providing exceptional legal service while ensuring his clients' interests are effectively represented.
About Elder Law
Elder law attorneys help seniors and their families with legal matters affecting older adults including estate planning, long-term care, and benefits. Common matters include medicaid planning, long-term care, guardianship, estate planning.
Credentials
Education
N/A Santa Clara Univ SOL law N/A Univ of California Berkeley undergraduate
Languages
Greek | English
Recognition & Involvement
Awards
2017 Rising Star, Northern California Super Lawyers 2016 Rising Star, Northern California Super Lawyers 2015 Rising Star, Northern California Super Lawyers 2014 Rising Stars, Northern California Super Lawyers 2013 Rising Star, Northern California Super Lawyers
Publications
2016 Contra Costa Lawyer Telephonic Appearance and Your Practice 2003 The Undergraduate Journal of the Department of Political Science, U.C. Berkeley, Politica (Spring 2003) Vol. 9 No. 1, pp 1-48. Nuclear Weapons Science and Politics: the Interests of National Security and its Effects on the City of Livermore
Associations
2015 - Present Contra Costa County Elder Law Section Board of Directors 2010 - Present Contra Costa County Bar Association Member 2010 - Present Contra Costa County Estate Planning & Probate Section Member 2005 - Present State Bar of California Member 2015 - 2015 Contra Costa Barristers Association President
Speaking
2016 Eastern Alameda County Bar Association Financial Elder Abuse 2016 Contra Costa County Bar Association MCLE Spectacular Fighting Financial Elder Abuse 2015 Thursday Advisor Roundtable Legal System and Protecting the Elderly 2015 Contra Costa County Bar Association Introduction to Probate 101 2015 Contra Costa County Bar Association Get to Know Your CCCBA
Other Elder Law Attorneys in Walnut Creek, CA
Updated: May 25, 2026