When creating a trust, many parents face a difficult question: should their children serve together as co-trustees? At first glance, the idea feels fair. Appointing everyone equally can seem like a good way to avoid hurt feelings and show trust in each child.

However, fairness and practicality are not always the same thing.

Serving as a trustee involves real responsibilities, decision-making, and communication. To learn more about the Trustee’s role, read this article. While some siblings work exceptionally well together, others may find that shared authority creates delays, disagreements, or unnecessary stress. Understanding the advantages and potential challenges of co-trustees can help families make more informed estate planning decisions.

What Is a Co-Trustee?

A trustee is the person responsible for managing and distributing trust assets according to the terms of the trust. When two or more people serve in that role together, they are known as co-trustees.

In some family trusts, parents choose multiple children as co-trustees because they want everyone involved in important decisions. The goal is often to promote transparency and prevent one child from having too much control or too much responsibility.

While those goals are understandable, the arrangement works best when the individuals involved can communicate effectively and cooperate over what may be many years.

The Advantages of Naming Co-Trustees

There are situations where co-trustees can be an excellent choice.

First, co-trustees provide built-in accountability. Because decisions are shared, there is generally greater oversight of financial transactions and trust administration.

Second, multiple trustees bring different strengths to the table. One child may have strong financial skills, while another may be particularly organized or effective at communicating with beneficiaries.

Co-trustees can also help reassure family members that decisions are being made collaboratively rather than by a single individual.

Potential benefits include:

• Shared responsibility for administrative tasks
• Greater transparency among family members
• Checks and balances on important decisions
• Diverse perspectives when managing assets

For families with a history of cooperation and trust, these advantages can be significant.

When Co-Trusteeship Creates Challenges

Unfortunately, serving as co-trustees is not always as simple as it sounds.

Many trusts require trustees to act together when making decisions. If co-trustees disagree, routine matters can become complicated. Selling property, making investment decisions, or approving distributions may require ongoing discussions and unanimous action.

Even minor differences in personality can create friction. One sibling may prefer quick decisions, while another wants extensive discussion before moving forward.

Distance can be another obstacle. Adult children often live in different cities or even different states. Coordinating documents, signatures, meetings, and financial decisions can become time-consuming.

The trust administration process may also slow down significantly if communication breaks down or family relationships become strained.

How Family Dynamics Affect Trust Administration

Family relationships are often the most important factor in deciding whether co-trustees make sense.

Consider a hypothetical family with three adult children. All three get along reasonably well during holidays and family gatherings. However, managing a trust is very different from sharing a family dinner.

Once financial decisions enter the picture, old disagreements may resurface. One child may feel another is being too cautious. Another may believe a sibling is exerting too much influence. Even when everyone has good intentions, differing opinions can create tension.

Parents sometimes assume that naming all children equally will preserve harmony. In reality, requiring siblings to make every decision together can create new sources of conflict.

That does not mean co-trustees should never be chosen. It simply means the decision should be based on the family’s actual dynamics rather than a desire to avoid difficult conversations.

When a Single Trustee May Be the Better Choice

In many situations, appointing one trustee is the most practical option.

A single trustee can often act more efficiently and make decisions without waiting for consensus. This is especially helpful when trust assets include real estate, closely held businesses, or investments that require timely attention.

A sole trustee may be appropriate when:

• One child has significantly greater financial experience
• Siblings have a history of conflict
• Family members live far apart
• Trust administration is likely to be complex
• Quick decision-making will be important

Choosing one child does not necessarily mean favoring that child over others. It may simply reflect who is best positioned to handle the responsibilities involved.

Alternatives That Promote Harmony and Accountability

Families are not limited to choosing either multiple co-trustees or a single child.

Many trusts use other approaches that balance efficiency and oversight.

For example, parents may choose a professional trustee, such as a bank trust department or trust company, to serve alone or alongside a family member.

Some families also select a successor trustee structure where one child serves first and another steps in if needed.

These alternatives can preserve accountability while reducing the risk of administrative delays and sibling disagreements.

Making the Right Choice for Your Family

Choosing trustees is one of the most important parts of trust design. While naming all children as co-trustees may seem like the fairest solution, it is not always the most effective one.

The best choice depends on the family's relationships, communication styles, abilities, and long-term goals. A well-designed plan considers not only who can serve, but how they are likely to work together when important decisions arise.

If you're evaluating trustee options as part of your estate planning process, take time to consider the practical realities as well as the emotional ones.

To learn more, download our Estate Planning Checklist or request a copy of Richard's book. If you'd like guidance on creating a trust that supports both family harmony and effective administration, consider requesting a consultation with our estate planning team.