A New Era in Family Law Representation
Clemens Warren Pinkerton Siems is proud to announce its official formation, uniting four of San Diego’s most respected and accomplished family law attorneys under one banner. The launch of this premier boutique firm marks a significant milestone for the legal community and for families throughout Southern California seeking expert, compassionate, and results-driven representation in complex family law matters.
The firm brings together the talents of Tamatha Clemens, Daniel Warren, Sarah Pinkerton, and the newest partner, Kyle Siems. With more than 80 years of combined experience, all four partners are Certified Family Law Specialists—an honor held by fewer than 1% of California attorneys. Each is known not only for their legal acumen but for their unwavering commitment to professionalism, integrity, and client-centered advocacy.
The formation of Clemens Warren Pinkerton Siems is more than a merger of legal minds—it’s a commitment to elevating family law practice in San Diego. For clients, it means personalized service backed by unmatched expertise. For the legal community, it represents a renewed standard for collaboration, integrity, and excellence.
To learn more, visit www.clemenswarren.com/about.
Tamatha Clemens as built a career as one of San Diego’s top trial attorneys in high-asset divorce, custody litigation, and complex support matters. A two-time Super Lawyers honoree and a recipient of the San Diego Business Journal’s “Top 50 Women of Influence,” Tamatha is known for her tireless preparation, courtroom poise, and deep dedication to her clients. Her reputation for excellence is reflected in her longstanding leadership within the local family law community.
Daniel Warren brings a powerful combination of litigation expertise, appellate insight, and practical business sense to the firm. Consistently recognized by Super Lawyers since 2019 and rated a “10” on Avvo, Daniel is a frequent speaker on complex legal strategy and a former President of the San Diego Family Law Bar Association. His background in civil and financial litigation allows him to resolve even the most tangled legal and financial disputes with clarity and precision.
Sarah Pinkerton is a respected leader in child custody, move-away litigation, and private mediation. AV-Preeminent rated by Martindale-Hubbell, she has been named a Top Lawyer by San Diego Magazine for over a decade. Sarah is known for her strength in cases involving sensitive family dynamics, and she often serves as court-appointed minor’s counsel. Her work reflects a rare balance of legal strength and human compassion.
Kyle Siems, the newest addition to the partnership, joins the firm following years of recognition for his work in complex financial and custody cases. A Certified Family Law Specialist and Fellow of the prestigious American Academy of Matrimonial Lawyers (AAML), Kyle brings deep experience in business valuation, forensic tracing, and high-conflict parenting disputes. He has been named to Best Lawyers: Ones to Watch and is a Super Lawyers honoree since 2022. His addition further solidifies the firm’s standing as a leader in elite-level family law representation.
