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For any landed estate, certainty of succession begins with the fundamentals: a valid, up‑to‑date Will and appropriate lasting powers of attorney (LPAs). These documents are the legal backbone of any succession plan.

Most estate owners will already have a Will, but it is surprising how often it is outdated, inconsistent with the wider estate structure or silent on key issues. Even where the estate itself passes under a trust or other long‑term structure, a Will remains essential to ensure personal assets, business interests and governance roles pass in a coherent way.

LPAs are equally important. Should the owner lose mental capacity, attorneys must be able to manage the estate’s affairs, maintain continuity and implement the owner’s long‑term intentions. Without LPAs, the estate may be left in limbo at a critical moment, with decisions delayed by the need for a deputyship order.

These documents are widely discussed elsewhere, but for landed estates they are not mere formalities – they are the first building blocks of a stable succession.

Letters of wishes

For many estate owners, a letter of wishes is one of the most valuable tools in articulating long‑term intentions. Unlike a Will, it is not legally binding, but its flexibility is precisely what makes it powerful.

A well‑crafted letter of wishes can:

• Clarify the owner’s overarching aims. The process of writing it forces the owner to think deeply about priorities, risks and the future shape of the estate.
• Define the estate’s identity. It can distinguish between core assets that must be preserved and non‑core assets that may be sold to raise liquidity or adapt to changing circumstances.
• Address sensitive issues. Family dynamics, privacy concerns, community responsibilities, environmental stewardship and attitudes to risk or tax planning can all be recorded.
• Provide a reference point for future reviews. As circumstances evolve, the letter can be updated without the formality of revising a Will or trust.

Although letters of wishes are typically confidential, they are most effective when their themes are shared with those who will one day be responsible for the estate. Early understanding and buy‑in from the next generation can be critical to a smooth succession.

Family charters

A family charter takes the concept of a letter of wishes further. It is usually a more formal, collaborative document, developed with input from multiple family members. Its purpose is to create a shared understanding of:

• the family’s common purpose
• long‑term strategic aims for the estate
• the roles, responsibilities and expectations of each family member
• principles for decision‑making and conflict resolution
• the values that should guide stewardship of the estate

Family charters are not suitable for every family. But where relationships are strong and communication is open, the process of creating a charter can be transformative. It encourages transparency, reduces the risk of future disputes and helps align personal ambitions with the needs of the estate.

The role of professional advisers

Neither letters of wishes nor family charters require legal formality. However, involving experienced advisers can add significant value.

Professionals can:

• ensure the documents align with the legal and tax structures underpinning the estate
• help articulate sensitive issues in a constructive, balanced way
• identify gaps or risks that may not be obvious to the family
• facilitate discussions between generations
• ensure the documents remain practical, realistic and capable of guiding future decision‑makers

Depending on the estate’s complexity, these documents may range from a few pages to substantial, detailed frameworks. Whatever their length, their purpose is the same: to provide clarity, foster unity and support long‑term stewardship.

How Sinclair Gibson supports this process

Sinclair Gibson is particularly well placed to assist estate owners with these foundational elements of succession planning. Our work with multi‑generational families, trustees and estate structures means we understand both the legal mechanics and the interpersonal dynamics involved.

We regularly advise on:

• drafting Wills and LPAs that integrate seamlessly with trusts and estate structures
• preparing letters of wishes that reflect the owner’s intentions and the estate’s realities
• facilitating and drafting family charters
• navigating sensitive family discussions and competing interests
• ensuring governance documents are aligned with tax, property and trust considerations

Our approach is collaborative, discreet, and tailored – recognising that every estate and every family is unique.