A client’s will was perfectly clear—the three children would inherit the Manhattan co-op and investment accounts in equal shares. The documents we drafted were technically sound. But the will said nothing about their mother’s wedding ring, the art collected over a lifetime, or the handwritten family recipes. That is where the arguments began.
The formal machinery of estate administration is designed to transfer titled assets. A will directs who gets the real estate, the bank accounts, the brokerage portfolio. A trust provides a vehicle for managing those assets over time. But these legal instruments are blunt tools for handling the items of purely sentimental value—the objects that carry a family’s history but have little market worth.
This is the void that a letter of instruction—sometimes called a letter of wishes—is meant to fill. It is not a substitute for a will or trust. It is a personal companion to them. It provides context, expresses your values, and guides your executor or trustee through the decisions that a formal legal document cannot anticipate. It is your voice, speaking to your loved ones after you are gone.
What a Letter of Instruction Can—and Cannot—Do
I must be clear: a letter of instruction is generally not a legally binding document in New York. If your will states that your son inherits your classic car, a letter of instruction saying you’d prefer your daughter to have it will not override the will. The will, as the controlling legal document, dictates the distribution of titled property.
Its power is moral and practical, not statutory. It serves as a guide for your chosen fiduciary—the executor of your will or trustee of your trust. While your executor’s duties are governed by the Surrogate’s Court Procedure Act, this letter empowers them to carry out your wishes with confidence and clarity on matters the will does not address. It minimizes ambiguity and, in doing so, minimizes the potential for family conflict.
A well-drafted letter can:
- Explain your reasoning. You might leave a larger share of your estate to one child than another. A will simply states the fact; a letter of instruction can explain the context—perhaps one child received significant financial help during your lifetime, and this distribution is intended to create overall fairness.
- Designate personal effects. This is the most common use. You can specify who should receive your watch, your library of books, your grandfather’s tools, or other sentimental items. This simple act can prevent years of resentment among heirs.
- Provide instructions for digital assets. A list of online accounts, social media profiles, and cloud storage—along with instructions on how to access them and whether to memorialize or delete them—is invaluable for an executor.
- Outline your wishes for funeral and burial. While these are not legally binding, expressing your preferences for a service, cremation, or burial provides immense comfort and direction to a grieving family.
An Act of Intentional Stewardship
Drafting a will or trust is an essential act of financial stewardship. It ensures the orderly transfer of the wealth you have built. But your legacy is more than just assets on a balance sheet. It is also the values you lived by and the harmony you wish to leave behind in your family.
A letter of instruction is an act of relational stewardship. It is a deliberate, intentional effort to smooth the path for those you leave behind. The process of writing it forces you to think deeply about what matters most. It is an opportunity to share stories behind cherished objects, offer final words of advice, and express your hopes for the future of your family.
In my practice, I have seen these letters become the most treasured documents in an estate plan. The will is for the Surrogate’s Court. The trust is for the financial advisors. The letter of instruction is for your children and grandchildren. It is the final, personal expression of a life well-lived and a legacy well-planned.
From Legal Document to Personal Legacy
An estate plan is incomplete if it only addresses the division of property. It must also provide for the preservation of family relationships. The strongest legal structures can be undermined by disputes over small, sentimental items because the fight is never really about the object—it’s about the meaning behind it.
The letter of instruction bridges that gap between legal formality and personal meaning. It allows your intentions to guide the process, giving your executor the tools they need to act not just as a financial administrator, but as a true custodian of your legacy.
Before our next meeting, consider the personal items in your home that carry the most meaning. Make a simple list of five to ten objects and the person you envision as their next caretaker. This exercise is the first step in crafting a letter that will serve your family for years to come, long after the legal work is done.





