What Is a Successor Trustee? Duties, Steps & What to Do First

Being named a successor trustee is a significant responsibility — and for most people, it is one they have never taken on before. In this video, attorney Philip Kavesh of Kavesh Minor & Otis provides a practical quick-start overview of what a successor trustee is, what is expected of them under California law, and how to use the Successor Trustee Manual as a road map through the administration process.

Whether you are a surviving spouse who has just become the sole trustee, an adult child stepping in after a parent’s passing, or someone named to serve in the future, this video gives you a clear picture of what lies ahead — and how to handle it properly.

What Is a Successor Trustee?

When someone creates a living trust, they serve as the initial trustee — maintaining full control over their assets during their lifetime. A successor trustee is the person designated to step in and take over management of the trust when the original trust maker (legally called the “trustor”) can no longer act, whether due to incapacity, disability, or death.

For married couples, the surviving spouse typically becomes the first successor trustee when the other passes away or becomes incapacitated. For single individuals, it is often a trusted family member or friend. Understanding how to choose the right trustee or executor is something the attorneys at Kavesh Minor & Otis help clients think through carefully when building their estate plan.

One of the most important things to understand about the successor trustee role: it comes with real legal obligations. The trustee is accountable to the beneficiaries and to the courts, and can be held personally liable — out of their own pocket — for mistakes made in administering the trust, even inadvertent ones. This is a role to be taken seriously, and it is why proper preparation matters.

The Three Core Duties of a Successor Trustee

The duties of a California successor trustee fall into three broad categories:

  • Handle the assets. This means collecting, valuing, and managing all trust assets — real estate, bank and investment accounts, personal property, and more. Depending on the complexity of the estate, this may involve active investment management or simply preserving assets until they are distributed.
  • Pay debts, expenses, and taxes. The trustee is responsible for settling the trust maker’s outstanding debts, covering the costs of administering the trust, and filing and paying any applicable income and estate taxes. Consulting an attorney first — before the CPA or financial advisor — helps ensure these steps are handled in the right sequence.
  • Distribute to the beneficiaries. Once debts and taxes have been addressed, the trustee must distribute the remaining assets to beneficiaries as specified in the trust document. The timing and manner of those distributions — whether outright, over time, or at certain ages — will be spelled out in the trust itself.

For a detailed look at how this unfolds from start to finish, see our library article on the trust administration process in California and our FAQ on the trust administration timeline.

Understanding Beneficiary Rights

A key part of the successor trustee’s role is maintaining a transparent, communicative relationship with the beneficiaries. Under California law, beneficiaries have specific rights that the trustee is legally obligated to honor, including the right to be notified when the trustee takes over, the right to receive an inventory and accounting of trust assets, and the right to timely distributions as provided by the trust document.

Establishing open communication with beneficiaries early — going beyond the formal legal notice and reaching out personally — is one of the most effective ways a successor trustee can avoid conflict and keep the administration process running smoothly. Failing to respond promptly and courteously to beneficiary questions is one of the most common ways trustees create problems for themselves. Learn more about trust accounting and beneficiary rights in California.

What to Do First: Disability vs. Death

The immediate steps a successor trustee takes depend on whether the trust maker has become incapacitated or has passed away.

If the Trust Maker Has Become Incapacitated

Before acting, the successor trustee typically needs two signed physician letters stating that the trust maker is no longer capable of managing their own financial and health affairs. Once that threshold is established, the trustee can step in to manage financial matters. Health care decisions are handled separately — by whoever has been designated under the trust maker’s Advanced Health Care Directive, which may or may not be the same person. Our blog explains more about what happens to a living trust when the trust maker becomes disabled. If the trust maker is in a gradual decline, there may also be valuable last-minute planning opportunities — including Medi-Cal planning and asset protection — that should be addressed while there is still time to act.

If the Trust Maker Has Passed Away

Fortunately, the legal deadlines following a death are less immediate than in a disability situation — the first one typically does not arise until nine months after the date of death. That said, it is important not to wait. The first priorities are locating the estate planning documents, securing valuable assets, opening a trust checking account, and establishing communication with the beneficiaries. Critically: do not sign anything or take any major action under pressure before consulting an attorney. Our free Successor Trustee Checklist outlines the essential first 30 days step by step.

Key Dos and Don’ts for Successor Trustees

The Successor Trustee Manual covers a full list of important dos and don’ts. A few of the most critical ones to keep in mind from the start:

  • Do locate and secure all estate planning documents and valuable assets as soon as possible.
  • Do set up a dedicated trust checking account to keep trust income and expenses completely separate from your personal finances.
  • Do establish open, personal communication with all beneficiaries early in the process.
  • Do consult an attorney first — before your CPA or financial advisor — to ensure the administration is coordinated properly from the beginning.
  • Don’t use trust assets for personal expenses or take distributions for yourself before making proportionate distributions to other beneficiaries.
  • Don’t commingle trust funds with your personal accounts.
  • Don’t ignore or delay responding to reasonable beneficiary requests — this is one of the fastest ways to create conflict and legal liability.
  • Don’t act alone if other co-trustees have been named.

For a deeper look at where things go wrong, our free guide — The 10 Biggest Mistakes Trustees Make and How to Avoid Them — is essential reading, as is our blog post on the 10 biggest mistakes successor trustees make. You may also want to review our FAQ on successor trustee frequently asked questions after a living trust maker’s death.

You Don’t Have to Do This Alone

Acting as a successor trustee can feel overwhelming at first, but it is important to remember that you are not expected to navigate this process without help. Qualified professional advisors — an estate attorney, CPA, and financial advisor — can be engaged to guide you through every phase of the administration, and their reasonable fees can be paid from the trust assets themselves.

The services Kavesh Minor & Otis provides for trustees and beneficiaries are specifically designed to make the administration process as smooth and manageable as possible. Our attorneys have handled over 2,000 living trust administrations — an extraordinary level of experience that gives us a practical, real-world understanding of what successor trustees encounter and how to help them handle it correctly. You can also learn more about the benefits of hiring a California trust administration lawyer to guide you through this process.

Helpful Resources for Successor Trustees

Need Help Administering a Living Trust in California? Call Kavesh Minor & Otis.

At The Law Firm of Kavesh Minor & Otis in Torrance, California, we have guided thousands of successor trustees through every stage of the trust administration process — from the first steps after a loved one’s passing to the final distribution of assets. If you have been named as a successor trustee and are not sure where to start, we are here to help.

You may qualify for a free initial attorney consultation. Call us at 1-800-756-5596 or use our convenient online form to reach our team today.