Family dynamics in estate planning

 "Happy families are all alike; every unhappy family is unhappy in its own way,"  Leo Tolstoy, Anna Karenina 

For Wealth Advisers and estate planners, Tolstoy’s famous observation captures a daily reality: while financial structures can often be standardised, family dynamics rarely are. Behind every estate plan sits a web of relationships, histories, expectations, and tensions that can shape or unravel even the most carefully designed strategy.

At its core, estate planning is about people. And people are complicated.

For professionals advising in this area, what appears to be a technically straightforward estate can quickly become complex when layered with estranged children, second marriages, blended families, family businesses, long-standing resentments, or vulnerable beneficiaries. Situations once considered “unusual” are increasingly the norm rather than the exception.

Handled well, these circumstances provide an opportunity to demonstrate genuine value as a trusted Adviser. Handled poorly, they can lead to disputes, litigation, and fractured relationships that last for generations.

This article explores practical ways Advisers can navigate complex family dynamics with professionalism and care.

1. Non-standard is now standard

What was once considered uncommon, second or third marriages, stepchildren, unmarried partners, or international families, is increasingly typical.

The traditional image of a nuclear family with “2 or 4 children” should no longer be the starting assumption. Instead, approach every matter with the expectation that family structures will be diverse.

Adopting this mindset prevents unconscious bias and encourages curiosity rather than judgment when understanding each client’s circumstances.

2. Professional curiosity

Clients often begin with what appears to be a simple instruction:

“I want everything to go to my wife, but I don’t want my son to receive anything.”

That sentence may conceal decades of family history.

As Advisers, our role is not to repair damaged relationships; we should be mindful not to worsen them. However, we need to understand the underlying context to draft appropriately and manage potential risk.

Some useful approaches when taking instructions include:

• Asking open-ended questions: “Help me understand your thinking there.”
• Clarifying expectations: “How do you see this affecting family relationships in the future?”
• Exploring assumptions: “What do you think your daughter might expect?”
• Being willing to discuss family dynamics openly.

The goal is not to challenge the client’s autonomy, but to ensure decisions are informed and considered.

Often, clients have not fully reflected on the emotional consequences of their choices. Giving them the space to explain their reasoning can either reinforce their decision or prompt reconsideration.

3. Be alert to capacity issues and undue influence

Complex family dynamics can sometimes intersect with vulnerability. Warning signs may include:

• A new partner accompanying an elderly client and answering questions on their behalf
• Sudden changes to long-standing testamentary intentions
• Isolation from family members
• Switching Advisers after many years with a previous professional

Where concerns arise, sensible precautions include:

• Seeing the client alone
• Keeping detailed attendance notes
• Considering a medical capacity assessment
• Recording the reasons for excluding a beneficiary

If a dispute later arises, your file may become crucial evidence. Addressing difficult issues early is far easier than reconstructing events years later.

4. Manage expectations early

Many people are uncomfortable discussing finances within families. However, secrecy can sometimes become a catalyst for future disputes.

This is particularly common in blended families. Clients may assume arrangements will simply work themselves out:

• “Everything to my spouse, then to my children.”
• “My children now - I don’t trust my spouse to provide for them.”
• “Equal shares between biological and stepchildren.”

Clients often underestimate the emotional complexity of these arrangements.

A common flashpoint occurs when a parent leaves their entire estate to a second spouse, assuming that the spouse will later provide for the deceased’s children from a previous relationship. In reality, this relies on goodwill rather than legal obligation. It is not unusual for a surviving spouse to later amend their Will, leaving stepchildren disinherited.

Trust structures, Life Interests, and ring-fencing specific assets can help address these risks, but they require careful explanation and drafting. Advisers should also explore uncomfortable but necessary questions:

• What happens if the surviving spouse remarries?
• What if relationships between the spouse and children deteriorate?
• What if assets are needed for care costs?

These conversations may feel awkward, but they are far easier during the client’s lifetime than in the context of later litigation.

5. Approach estrangement with care

Estranged children present some of the most emotionally charged situations in estate planning. Some clients are certain they wish to exclude a child entirely. Others struggle with the decision while still feeling deeply hurt.

Rather than simply drafting a Will that excludes the child, Advisers should consider:

• Whether a Letter of Wishes explaining the decision may help
• Whether a modest legacy might reduce the likelihood of a claim
• Whether the child has been financially dependent

Recent case law demonstrates that estrangement alone does not always prevent a claim against an estate. If an adult child can demonstrate financial need, the Courts may still make an award. Clients should therefore understand the potential risks and implications of their decisions.

6. Protect vulnerable beneficiaries

Families may include beneficiaries who are:

• Financially irresponsible
• Experiencing mental health difficulties
• Receiving means-tested benefits
• Facing marital breakdown

In these circumstances, an outright inheritance may not be appropriate. Discretionary Trusts, staggered distribution, or the appointment of professional Trustees can allow beneficiaries to benefit from an estate while protecting assets.

How this is framed is important. Safeguards should be presented as protection rather than control:

“This structure provides flexibility and long-term stability, whatever life brings.”  Language often shapes acceptance.

7. Stay neutral, even when you disagree

Advisers will inevitably encounter decisions they personally consider unfair. However, provided the client has capacity and is acting free from undue influence, the role of the Adviser is not to impose personal views.

Our responsibility is to ensure the client understands the implications of their choices and that those choices are properly documented. Clarity and robustness, not fairness, are the professional priorities.

8. Document everything

Detailed attendance notes are often overlooked in busy practices, but they are essential protection.

Your file should clearly record:

• Who attended meetings
• What was discussed
• The reasons for the decisions
• Any capacity considerations
• Advice given about potential claims

If litigation arises years later, those notes may be scrutinised closely, and you may be asked to give evidence. Comprehensive records demonstrate that the client’s wishes were deliberate and informed.

Technology, including transcription tools, can assist in capturing discussions accurately.

9. Recognise the emotional weight of the work

Advising families in conflict can be emotionally draining.

Many professionals have experienced the familiar 3am worry about a difficult client decision or the possibility of future disputes. Maintaining professional boundaries is therefore important.

Advisers are not Therapists. While empathy is essential, the role remains legal and financial. When appropriate, clients should be signposted to other professionals who can assist with emotional or relational issues.

10. Encourage regular reviews

Family circumstances rarely remain static.

Relationships change, grandchildren arrive, businesses are sold, and health circumstances evolve. Yet many clients treat their Will as a one-off document that requires no further attention.

Encouraging regular reviews, particularly after major life events such as marriage, divorce, or bereavement, helps ensure estate plans remain relevant and reduces the risk of outdated decisions taking effect.

Final thoughts: there is no such thing as “normal”

Estate planning sits at the intersection of money, mortality, and family relationships. Three subjects that naturally generate strong emotions. Technical expertise is only part of effective advisory work. Emotional intelligence, thoughtful questioning, and careful documentation are equally important.

Every family has its quirks: blended households, complicated histories, and sometimes the relative who hasn’t spoken to anyone since a disagreement at Christmas dinner twenty years ago. Rarely does reality resemble the neat scenarios found in textbooks.

Clients do not simply need the Adviser who can draft the fastest document. They need the Adviser who can identify potential problems early and bring calm, clarity, and perspective when emotions run high.

The real work of estate planning is not just drafting Wills or Trusts. It is helping clients understand the consequences of their decisions and ensuring their intentions are carried out with confidence.

In a world where the so-called “non-standard” family has quietly become the norm, the ability to navigate family relationships is not an optional extra.

It is simply part of the job.

About the author

Katherine Marshall is a Partner at IDR, specialising in complex contentious matters. After studying at Nottingham Law School, Katherine trained and qualified at a regional firm before moving to a boutique litigation practice with offices in Gray’s Inn Square, London, gaining broad experience across a range of disputes but with a particular emphasis on claimant professional negligence work.

Katherine later went on to lead the Contentious Probate Team at a large regional firm, advising on challenging and often sensitive disputes involving estates and Trusts. From a farming background, Katherine is particularly well placed to advise on estate and Trust disputes alongside estoppel claims arising in a farming context, able to speak “farming language” and with a genuine understanding of the pull of agricultural life. She understands why leaving the land is never a simple decision.

Katherine has a particular interest in the nature of this work as it combines technical law and personal relationships with strategic problem-solving, all while keeping sight of the very real human issues at the heart of each dispute.

If you have any questions or need any support with estate administration, please get in touch with us by emailing ClientServicesTeam@kctrust.co.uk or calling 0300 303 9000.