Wisconsin’s 120-Hour Rule, Survivorship Marital Property, and Blended Families
When families blend through second marriages, later-in-life relationships, or remarriage after divorce, estate planning becomes more complex, and more important. This is especially true when one or both spouses have children from prior relationships.
A recent Wisconsin Court of Appeals decision, Sterling L. North v. Estate of William James North II, 2024AP1908 (Wis. Ct. App. Dec. 30, 2025) shows how a lack of planning can result in an unintended division of property between the spouses’ children, particularly when spouses die within a short period of time, and property is held as marital property with rights of survivorship.
The case offers a clear, real‑world example of how Wisconsin’s 120‑hour survivorship rule (Wis. Stat. § 854.03) can override expectations and reshape outcomes for blended families.
The 120‑Hour Survivorship Requirement in Wisconsin
Under Wis. Stat. § 854.03, a person must survive another by at least 120 hours (five days) to inherit property from that person. If the survival requirement is not met, the law treats the would‑be heir as having predeceased the decedent for inheritance purposes.
The purpose of the rule is administrative efficiency and fairness:
- Preventing property from passing through multiple estates in rapid succession.
- Reducing uncertainty when deaths occur close together.
Importantly, the rule applies broadly — to intestate succession, wills, and many non‑probate transfers — unless a governing document clearly overrides it.
The North Case: What Happened?
Family Background
In North, William James North II and Diane L. North were married later in life. They had one child together, Sterling. William also had two children from a prior relationship. This is a common blended‑family structure, with multiple sets of beneficiaries whose interests do not fully align.
The Property and Estate Plans
William and Diane owned their home as survivorship marital property. Like many couples, they likely assumed that, after the first of them died, the survivor would own the home outright and the survivor’s estate plan would determine where the property ultimately went.
Diane had a will; William did not. Diane’s will left her property to William if he survived her, and to Sterling if William did not.
The Deaths
Diane died in January 2024 while residing in a nursing home. On the same day, William was found deceased at the marital home. It was undisputed that William and Diane died within 120 hours of each other. William predeceased Diane, but not by five days.
The Legal Question
The key issue before the court was whether the 120‑hour survivorship rule applied to survivorship marital property, and if so, what effect it had on ownership of the homestead.
Sterling argued that exceptions to the 120‑hour rule should apply, and that Diane’s estate should own 100% of the homestead, which would have resulted in Sterling inheriting the entire property.
The Court’s Decision
The Wisconsin Court of Appeals rejected Sterling’s arguments and affirmed the circuit court’s ruling that the 120-hour rule applies to survivorship marital property.
Because William and Diane died within 120 hours of each other, neither spouse was treated as having survived the other for survivorship purposes and the survivorship feature failed. William’s estate and Diane’s estate each owned one-half of the home.
As a result:
- Diane’s 50% interest passed to Sterling.
- William’s 50% interest passed equally to Sterling and William’s two other children.
From a client’s perspective, the outcome may feel counterintuitive; the property was titled with survivorship rights, William died first, and Diane had a will leaving everything to Sterling if William did not survive her. Nonetheless, the 120-hour rule altered the expected result.
This result is especially significant for blended families because William’s estate included heirs from his prior relationship — people Diane may not have intended to benefit under her estate plan.
Key Lessons for Blended Families
- Survivorship Is Not Absolute
The North case confirms that survivorship marital property is not exempt from the 120‑hour rule. When spouses die within a short time of one another, survivorship can collapse into fractional ownership between estates. - A Will Alone Is Not Enough
Diane’s will clearly expressed her intent, but it could not override survivorship rules for property that passes outside probate. This highlights a common misconception that “my will controls everything.” - Blended Families Face Higher Risk
Because blended families involve multiple lines of inheritance, stepchildren, and potentially differing expectations between spouses, the failure of survivorship can significantly alter who benefits and by how much.
Planning Strategies to Avoid the North Outcome
- Explicitly Address the 120‑Hour Rule
Wills and trusts can modify or eliminate survivorship requirements and can provide alternative distributions when deaths occur close in time. Doing so prevents statutory default rules from controlling the outcome. - Use Trust-Based Planning
In blended families, trust-based planning is often a better fit than characterizing property as survivorship, particularly for high-value assets, the family home, or property intended to benefit children from a prior relationship.
A properly designed trust can provide lifetime security to a surviving spouse while preserving assets for children from earlier relationships — allowing both spouses’ wishes to be honored within a single, cohesive estate plan.
Conclusion
Sterling L. North v. Estate of William James North II is a powerful reminder that timing matters in estate planning, and that default rules can quietly undo even well‑intentioned plans.
For blended families in Wisconsin, the interaction between the 120‑hour rule and survivorship marital property is not academic. It can determine whether children inherit as expected or whether assets are divided in ways no one anticipated.
Thoughtful, proactive planning — tailored to blended‑family realities — is the best way to ensure that your wishes are carried out, even when life unfolds unpredictably.
