Family law sits at an unusual intersection. It is simultaneously the most personal area of law — involving marriages, children, inheritance, and the dissolution of relationships built over decades — and, for high-net-worth families and business-owning households, one of the most commercially consequential.
A contested divorce does not just divide a marriage. It can fracture a family business, paralyse a jointly owned property portfolio, and trigger a succession crisis that takes years to resolve. A poorly drafted Will does not just disappoint beneficiaries. It can generate litigation that consumes a substantial portion of the estate it was meant to protect. And a succession dispute within a polygamous family structure, where customary rights intersect with statutory law and constitutional principles, can become extraordinarily complex and extraordinarily expensive.
The Kenyan courts have been remarkably active in this space in the past two years — expanding protections, clarifying ambiguities, and dismantling practices that were once assumed to be settled. If your family's wealth, estate planning, or personal circumstances have not been reviewed against the current legal landscape, they should be.
The Legal Framework
Family law in Kenya operates at the intersection of multiple legal systems. The primary statutory instruments are the Marriage Act, 2014, the Matrimonial Property Act, 2013, and the Law of Succession Act — but these exist alongside customary law traditions and Islamic law, both of which have constitutional recognition.
In 2026, the Judiciary issued a directive making court-annexed mediation a mandatory precursor for all contested custody, maintenance, and matrimonial property proceedings. Before a contested family matter proceeds to trial, parties must now attempt mediation under a structured, court-supervised process. Agreements reached through mediation are recorded as binding court consent orders — enforceable and final, without the need for a full trial.
This is a significant development. It accelerates resolution, reduces costs, and — critically — keeps sensitive family and financial information out of the public court registry.
Four Developments Every Kenyan Family Should Know About
Children born outside marriage have inheritance rights that cannot be overridden by religious law
The Supreme Court has ruled definitively that children of a Muslim parent born outside of wedlock have an equal right to inherit property. The court held that the constitutional exemption granted to Islamic personal law does not override the paramount constitutional principle of the best interests of the child. This ruling has immediate implications for blended families, estate planning across different religious traditions, and the drafting of Wills where some beneficiaries may have been intentionally or inadvertently excluded.
Long-term cohabitation can create matrimonial property rights
The High Court has confirmed the concept of "presumed marriage" — finding that a legal marriage can exist in the eyes of the law even without a formal statutory or customary ceremony, based on prolonged cohabitation and public perception. In a case involving nearly two decades of cohabitation, properties acquired and developed jointly during that period were classified and divided as matrimonial property.
For couples in long-term relationships without a formal marriage, and for families dealing with succession claims from long-term partners of deceased relatives, this ruling significantly expands who has legal standing to claim a share of an estate or property portfolio.
You cannot disinherit a dependent without legally defensible reasons
The Court of Appeal has clarified the limits of testamentary freedom — the right to distribute your estate as you choose through a Will. Under Section 29 of the Law of Succession Act, a testator must make adequate provision for all legal dependants. Where a dependent has been excluded, the Will must articulate clear, legally valid reasons for that exclusion. A Will that simply omits a dependent without explanation is vulnerable to being contested and rewritten by the court — regardless of the testator's intentions.
If you have a Will, and it excludes any person who could qualify as a dependent, it needs to be reviewed.
Mandatory mediation changes the strategy of family disputes
The 2026 Judiciary directive does not just add a procedural step. It changes the entire strategic calculus of a family dispute. Parties who enter mediation without proper legal representation and a clear understanding of their rights frequently concede positions that a court would have awarded in their favour. Conversely, parties who are well-prepared for mediation can achieve faster, more private, and more commercially rational outcomes than any trial would deliver.
What Good Family Law Planning Looks Like
The common thread across every contentious family law matter we have seen is this: the dispute was predictable. It arose from gaps that existed long before the relationship broke down or the estate was opened.
At W Mwaniki & Associates, we help individuals and families close those gaps before they become crises. We draft Wills that are structured to withstand Section 29 challenges. We establish family trusts that ring-fence commercial assets from matrimonial property disputes. We advise on prenuptial agreements that protect the wealth both parties bring into a marriage. And where family disputes have already arisen, we provide skilled representation in mediation and in court — with a particular focus on protecting the financial interests and wellbeing of children.
These are not conversations to defer. Succession disputes are devastating precisely because they arise at the moment a family is least equipped to handle them — in grief, in conflict, and under time pressure.
If your estate plan has not been reviewed in the last two years, or if your family circumstances have changed significantly, contact W Mwaniki & Associates for a confidential consultation today.
