Jennifer Lumsdaine, Partner

Jennifer Lumsdaine is a partner at TLD Law, LLP. Her practice focuses on assisting fiduciaries and businesses both in litigation and in formulating best practices to prevent litigation. Ms. Lumsdaine has extensive experience in probate and trust litigation including with contested fiduciary accountings, breach of fiduciary duty claims, Will or Trust contests, and financial elder abuse. Additionally her prior experience in family law has given Ms. Lumsdaine unique expertise in dealing with community property issues that arise in both contested and uncontested conservatorships, estate and trust matters and business management. All of these skills and experience in seeing the various causes and contributors to litigation in these areas, has added to Ms. Lumsdaine’s ability to advise clients with their own estate planning needs and in uncontested probate and trust administrations and conservatorships.  Ms. Lumsdaine’s litigation skills have additionally assisted fiduciary and business clients with employment law issues, business disputes and real estate concerns.

Ms. Lumsdaine joined TLD Law in 2005, after graduating from Loyola Law School of Los Angeles. There she externed with the Western Law Center for Disability Rights (now known as the Disability Rights Legal Center). At Loyola, Ms. Lumsdaine also received First Honors in Legal Ethics and remained at the top of her class through graduation. Over her years of practice, Ms. Lumsdaine has guided many clients through both uncontested matters and prevailed for her clients at trial.

Ms. Lumsdaine has taught legal theories and practices as an adjunct professor in the Paralegal Department of Cerritos Community College and continues her own legal training and education through regular attendance at litigation seminars and estate & trust courses.

Ms. Lumsdaine works primarily out of the firm’s Long Beach and Downey, California offices.


  • Southeast District Bar Association’s 2023 Attorney of the Year
  • The Best Lawyers in America®, Litigation – Trusts and Estates, 2020 – 2024
  • Southern California Super Lawyers®, 2015 – 2024
  • Southern California Super Lawyers® “Rising Star”, 2013 – 2014
  • Martindale-Hubbell AV Preeminent Rating
  • Loyola Law School Dean’s List (2000 – 2004)
  • Golden Key National Honor Society member


  • Member, Los Angeles County Bar Association
  • Past Board Member, Downey Family YMCA (2010 – 2019)
  • Past President (2012) and Board Member (2009 – 2019 and 2022 – present), Los Angeles County, Southeast District Bar Association
  • Board Member, St. Mary Medical Center Foundation (2022 – present)


  • University of California at Berkeley (B.A., 2000)
  • Loyola Law School of Los Angeles (J.D., 2004)


  • S. District Court, Central District of California, 2004
  • California, 2004
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