When parents create a family trust, they often want to treat their children equally. And what feels more equal than naming all of them as co-trustees? Unfortunately, this well-intentioned decision frequently leads to multiple co-trustee problems in California that can stall trust administration, fracture relationships, and sometimes land families in probate court.
Here’s the thing: the problems that arise aren’t always about conflict. Sometimes siblings get along just fine but still struggle with the logistics of managing a trust together. Coordinating schedules, agreeing on vendors, dividing tasks, and making timely decisions becomes surprisingly difficult when multiple people share decision-making authority.
Parents name multiple adult children as co-trustees because they want to be fair and avoid the appearance of favoritism. Nobody wants their kids to feel slighted, and giving everyone equal control seems like a reasonable solution.
There’s also a practical angle. Parents sometimes believe that having more people involved means better oversight and fewer mistakes. They assume their children will collaborate, check each other’s work, and share the burden of trust administration.
What parents often don’t anticipate is that shared fiduciary duties require constant coordination. Even when everyone agrees on the goals, the mechanics of getting things done with multiple decision-makers can become frustrating and time-consuming.
Under California law, co-trustees share the same fiduciary obligations and are jointly responsible for administering the trust properly. This means each trustee has a duty to:
The California Probate Code generally requires co-trustees to act unanimously unless the trust document says otherwise. This sounds straightforward until you realize that every decision, from selling a house to choosing a financial advisor, may require everyone’s agreement and signature.
Sibling trustee conflicts can bring trust administration to a grinding halt. When co-trustees disagree on how to handle assets, interpret trust provisions, or manage distributions, the trust can sit in limbo while beneficiaries wait.
Disagreements don’t have to be dramatic to cause problems. One sibling might want to sell the family home quickly, while another prefers to wait for a better market. One might favor a particular real estate agent; another might have different ideas. These differences, multiplied across dozens of decisions, create friction.
When sibling conflicts escalate and no resolution seems possible, trustee deadlock disputes may require court intervention to break the impasse.
In most cases, one co-trustee cannot act independently without the consent of the others. California’s default rule requires unanimous action unless the trust document explicitly allows majority rule or grants specific powers to individual trustees.
There are narrow exceptions. If a co-trustee is unavailable due to incapacity or absence, the remaining trustees may be able to act. However, taking unilateral action without proper authority can expose a trustee to claims of breach of fiduciary duty and personal liability.
When one sibling starts making decisions alone, whether out of impatience or frustration, it often triggers accusations of fiduciary misconduct and can quickly escalate into family trust litigation that California courts see regularly.
Equal control arrangements create conflict because they assume everyone will agree, and that assumption rarely holds up in practice. Even siblings who love each other deeply can have very different opinions about financial decisions, timing, and priorities.
Consider what happens when three adult children serve as co-trustees:
Dynamics like this in a multiple co-trustee situation can cause real problems and breed resentment. The sibling doing the heavy lifting feels underappreciated. The distant sibling feels excluded from decisions. The busy sibling gets frustrated when their input isn’t implemented quickly. What started as equal control becomes unequal participation and mutual frustration.
Poor trustee communication escalates into litigation when misunderstandings harden into accusations. When co-trustees stop talking openly, they start assuming the worst about each other’s motives.
A missed email becomes evidence of intentional exclusion. A delayed response becomes proof of obstruction. Before long, beneficiaries get involved, lawyers get called, and what could have been resolved with a phone call turns into a formal beneficiary dispute in probate court.
Trust administration conflicts often reach Ferguson Law Group after communication has completely broken down. By that point, the cost of resolving the dispute frequently exceeds what could have been saved with better planning upfront.
When one co-trustee handles most of the asset management and administrative tasks, two problems emerge. First, the active trustee becomes burned out and resentful. Second, the inactive trustees may later claim they were kept uninformed or excluded from decisions.
This imbalance also creates liability concerns. All co-trustees remain legally responsible for proper administration, even if they’ve delegated tasks to a sibling. If something goes wrong with trust accounting or investments, every trustee can be held accountable.
Yes, California courts have the authority to remove a co-trustee who has breached their fiduciary duties, become incapacitated, or whose continued service substantially harms the trust administration. Removing a co-trustee in California involves filing a petition and demonstrating specific grounds for removal.
Common grounds for trustee removal include:
Courts don’t remove trustees lightly. Judges want to see real evidence of harm or misconduct, not just personality conflicts or hurt feelings.
Trustee deadlock delays distributions whenever co-trustees cannot agree on how to proceed and no mechanism exists to break the tie. Beneficiaries waiting for inheritances or ongoing support can suffer real financial harm while trustees argue.
In some cases, deadlock prevents trustees from paying necessary expenses, selling assets at optimal times, or making required tax elections. These delays can diminish the trust’s value and expose trustees to liability for fiduciary misconduct.
When beneficiary disputes arise from prolonged deadlock, court intervention may be the only path forward.
Families have several options that preserve fairness without creating the logistical challenges of multiple co-trustees:
A thoughtful estate plan anticipates potential conflicts and builds in conflict resolution mechanisms before problems arise. Working with experienced counsel during the planning stage can prevent years of sibling conflicts and costly litigation later.
At Ferguson Law Group, we help California families navigate the messiness of co-trustee disputes and trust administration conflicts. Whether you’re trying to resolve a trustee deadlock, considering removing a co-trustee, or simply need guidance on your options, our team provides the expertise and understanding these difficult situations require.
We work with clients who want real solutions, not prolonged battles, and we’re not afraid to dig into complex cases when justice demands it. Contact us today to see how we can support your case.
Naming multiple children as co-trustees isn’t inherently bad, but it often creates practical challenges that parents don’t anticipate. Even when siblings get along well, coordinating schedules, agreeing on decisions, and managing shared responsibilities can slow down trust administration and breed frustration over time.
When co-trustees disagree in California, trust administration can stall because the law generally requires unanimous action unless the trust document provides otherwise. If the disagreement cannot be resolved, beneficiaries or trustees may need to petition the probate court for guidance or intervention to break the deadlock.
In most situations, one co-trustee cannot act independently without the consent of the other trustees under California law. Taking unilateral action without proper authority can expose that trustee to claims of breach of fiduciary duty and personal liability, even if their intentions were good.
