Letters of Wishes: Filling the Gaps Legal Documents Leave Behind
Most families never intend to leave confusion behind.
They assume their values are understood, that future decision-makers will know what they meant, and that legal documents will carry not just instructions, but intent.
Often, they don’t.
A letter of wishes is a written statement, typically created alongside an estate plan or trust, that explains the thinking behind family decisions. It is not legally binding. Instead, it provides context, values, and guidance to those who will be asked to exercise judgment in the future, such as trustees, family members, or successor decision-makers.
In simple terms, a letter of wishes answers a question legal documents cannot. Not just what should happen, but why.
Why Legal Documents Leave Gaps
Legal documents are built for certainty. They define powers, outline distributions, and establish legal mechanisms. To do this well, they rely on standardized language and avoid nuance.
Families do not live that way. They make trade-offs, weighing fairness against generosity and support against independence. Those judgments shift as circumstances change and generations pass.
A letter of wishes fills the space between legal structure and human reality. It gives families a way to explain how discretion should be used when the answer is not obvious and which values should guide decisions when priorities collide. In governance terms, it turns rules into reasoning.
The Risk of Saying Nothing
When families skip this step, the consequences rarely appear right away.
They surface later, when the people making decisions are no longer the people who created the structure. Trustees are left interpreting silence. Beneficiaries read meaning into outcomes, whether intended or not. Decisions may be technically correct yet feel inconsistent or impersonal compared to what the original decision-maker might have done.
Over time, frustration can build, not because anyone acted in bad faith, but because intent was never shared.
Consider a possible scenario.
A family establishes a long-term trust to support children and grandchildren, allowing distributions for education and personal development without defining those terms in detail.
Years later, a beneficiary asks the trustee to fund a year-long, nontraditional learning experience. The request is permitted under the trust. The question is whether it should be funded, and if so, how much.
Without guidance, the trustee faces a difficult choice. Approving the request may feel overly generous. Denying it may feel unsupportive. Either decision risks being interpreted as favoritism or rejection.
A letter of wishes does not provide a formula, but it provides context. If the family has explained that shared resources are meant to encourage independence, not replace personal effort, the trustee can respond thoughtfully. Perhaps part of the cost is covered, with expectations around commitment and follow-through. The beneficiary might even be asked to share updates with the broader family.
The outcome matters less than the reasoning. The decision reflects the family’s values, not just the trustee’s discretion.
Many conflicts around trusts and shared assets are not really about money. They are about meaning. They arise when decisions reflect only the limits of a document written years earlier, rather than the family’s values.
When Letters of Wishes Matter Most
Letters of wishes become especially valuable whenever families introduce discretion and time into decision-making. This often occurs with long-term trusts or foundations, multiple beneficiaries with different paths or needs, successor trustees who never knew the original intent-setter, or assets meant to last across generations. When corporate trustees are involved, sharing context, family values, and intent becomes even more important.
Anytime future judgment will be required, clarity today becomes an act of stewardship.
What a Letter of Wishes Actually Does
A letter of wishes does not dictate outcomes. It shapes how decisions are made.
Rather than trying to anticipate every future scenario, it helps decision-makers ask better questions. Is this request aligned with the purpose of shared resources? Does it support independence or unintentionally create reliance? How should present needs be weighed against future ones?
This is governance at its most human.
Writing One With Care
Families sometimes worry about whether a letter of wishes should feel formal or personal. The strongest letters avoid that false choice. They are not technical instructions or private notes meant only for today. They are thoughtful statements of judgment, written with the future in mind.
A few principles matter.
Begin with intent, not instruction. Be clear about why the letter exists. Is it meant to guide discretion over time, clarify values behind shared resources, or reduce ambiguity when trade-offs arise? A clear purpose prevents the letter from becoming controlling or from quietly undermining legal documents.
Write for time and distance. Assume the letter may be read decades from now by people who never met you. Context will matter more than detail. Explain how you think, not just what you prefer.
Favor principles over precision. Highly specific guidance tends to age poorly. Instead of listing permitted or prohibited uses, describe how competing values should be weighed when the answer is unclear.
Choose tone carefully. Measured, respectful language is more likely to preserve relationships as well as intent. While the trust creator is alive, a letter of wishes can be revisited and refined as circumstances change. Over time, it becomes a settled expression of judgment that future decision-makers can rely on with confidence.
What a Letter of Wishes Can and Cannot Do
A letter of wishes can guide discretion, reduce ambiguity, and help preserve values across generations. It cannot override legal documents, create enforceable obligations, or replace good judgment.
For that reason, letters of wishes should always be developed in coordination with legal and estate advisors. They should also be dated, signed, and notarized for authenticity, not legality.
Why This Matters
Estate plans rely on precision. Family legacies rely on understanding.
A letter of wishes brings humanity into systems designed for longevity. It replaces silence with context and gives future decision-makers a clearer path forward.
For families who care about stewardship, clarity is not control. It is care.
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This piece was written in collaboration with Madeline Tolsdorf.
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