I often sit with clients who have spent a lifetime building something—a family business in Brooklyn, a real estate portfolio, a significant collection of art. Their primary concern is rarely about their own future. It’s about the next generation, and the one after that. They might say, “I trust my daughter completely, but what happens if her marriage ends? I don’t want half of what I built for her to go to her ex-husband.” This isn’t about a lack of trust in their family; it’s a prudent acknowledgment of life’s unpredictability.
This is the conversation that often leads us to discuss a specific type of irrevocable trust, sometimes called a “bloodline trust” or a dynasty trust. It’s a structure designed with one primary goal: to ensure that significant family assets remain within your direct line of descendants for multiple generations.
The Intent Behind Generational Stewardship
A bloodline trust is fundamentally an act of stewardship. You are not just passing down assets; you are creating a framework to protect those assets from being diluted or lost over time. The core principle is that the inheritance you leave for a child, grandchild, or great-grandchild is held in trust for their benefit, rather than being given to them outright.
Why is this distinction so critical? An outright inheritance becomes the beneficiary’s personal property. It can be mixed with a spouse’s assets, become subject to division in a divorce, or be attached by creditors in a lawsuit or bankruptcy. By contrast, assets held in a properly structured bloodline trust do not legally belong to the beneficiary. They belong to the trust itself. The beneficiary has access to the funds according to the terms you set, but their spouse and their creditors generally do not.
This is not about controlling your family from beyond the grave. It’s about creating a protective shield around the legacy you worked so hard to build, giving future generations a foundation of support without exposing their inheritance to external risks.
Choosing a Trustee: The Fiduciary at the Helm
The success of any trust hinges on the person or institution you name as trustee. In a bloodline trust, which may last for decades, this decision is paramount. The trustee is the custodian of your legacy, bound by a strict fiduciary duty to manage the trust assets prudently and act solely in the best interests of the beneficiaries.
You can name a family member, a trusted advisor, or a corporate trustee like a bank’s trust department. Each has its merits. A family member understands your family’s dynamics, while a corporate trustee offers impartiality, expertise, and continuity. Sometimes, a combination—an individual co-trustee serving alongside a corporate trustee—provides a good balance.
The trustee’s job is to follow the instructions you lay out in the trust document. These instructions dictate how and when distributions can be made. For example, you might direct the trustee to distribute funds for a beneficiary’s health, education, maintenance, and support—a common standard. Or you could provide for more specific milestones, like funds to start a business or make a down payment on a home. The structure is flexible, but it must be deliberate.
The Limits of “Forever”: New York’s Rule Against Perpetuities
The term “dynasty trust” can be a bit misleading. It implies a trust that lasts forever, which is not legally possible in most states, including New York. Our state law places a limit on how long a trust can exist to prevent property from being tied up indefinitely across centuries.
This principle is codified in New York’s Estates, Powers and Trusts Law (EPTL). Specifically, EPTL § 9-1.1, known as the Rule Against Perpetuities, dictates the maximum duration of a trust. The rule is complex, but in essence, it prevents a trust from lasting longer than a period measured by the lives of specific people alive when the trust was created, plus 21 years.
This means that while a bloodline trust can certainly provide for your children, grandchildren, and even great-grandchildren, it cannot operate in perpetuity. Planning for this eventuality—determining what happens to any remaining trust assets when it must legally terminate—is a critical part of the drafting process. Understanding this legal boundary is essential for creating a plan that is not only ambitious but also legally sound.
A bloodline trust is a powerful tool for generational wealth preservation, but it’s not the right instrument for every family. It requires a significant commitment to long-term professional management and administration. For some families, simpler trust structures may be more appropriate.
If you are considering how to structure a multi-generational legacy, the first step is often to create a clear inventory of your major assets and a diagram of your family tree. With those documents in hand, you can schedule a private consultation to determine if a bloodline trust truly aligns with your family’s long-term vision.




