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How to Protect Inheritance Rights for Unmarried Partners in Non-Traditional Families

Heartland Estate Law, LLC Aug. 2, 2025

When your family doesn't fit the traditional mold, protecting your loved ones after you're gone becomes more complicated. Estate planning is a daunting task for anyone, but it can be especially challenging for non-traditional families.

At Heartland Estate Law, LLC, we understand that love doesn't always come with a marriage certificate, and we're here to help you secure your partner's future. Our experienced attorneys specialize in estate planning for all types of families throughout the Kansas City Metropolitan area, Missouri.

We recognize that unmarried partners face unique legal challenges when it comes to inheritance rights, which is why having proper estate planning documents isn't just helpful—it's essential for protecting the person you care about most.

The Reality for Unmarried Partners

Unlike married couples who automatically receive certain inheritance rights under the law, unmarried partners have virtually no legal protections when their significant other dies without a will. This harsh reality affects millions of Americans who choose to build lives together without marriage, whether they're long-term romantic partners, domestic partners, or other non-traditional family structures.

Without proper planning, your partner could face devastating consequences. They might lose the home you shared, have no access to your bank accounts, or watch helplessly as your biological family makes decisions about your final arrangements. Even worse, they could find themselves in lengthy, expensive legal battles while grieving your loss.

Common Challenges Faced by Unmarried Partners

These challenges emphasize the importance of proactive legal and financial planning for unmarried partners. By understanding the potential obstacles ahead, you can take steps to protect your rights and make sure your wishes are honored..

Automatic Inheritance Rights Don't Exist

The most significant challenge unmarried partners face is the complete absence of automatic inheritance rights. When someone dies without a will in Missouri, state intestacy laws determine who inherits their property. These laws prioritize spouses, children, parents, and siblings—but never mention unmarried partners, regardless of how long the relationship lasted or how intertwined your lives became.

Family Disputes and Legal Challenges

Biological family members might contest your partner's right to inherit, especially if they disapproved of your relationship. Without clear legal documentation, your partner could face hostile relatives who view them as an outsider with no legitimate claim to your assets.

Property Ownership Issues

If your name alone appears on the deed to your shared home, your partner could face immediate eviction after your death. Even if they contributed to mortgage payments or home improvements, they may have no legal right to remain in the property.

Healthcare and End-of-Life Decisions

Without proper documentation, hospitals might not allow your partner to visit you or participate in medical decisions during your final days. Your biological family could make choices that go against your wishes and your partner's input.

Missouri Law and Unmarried Partners' Rights

In Missouri, the law has a clear plan for who inherits property when someone dies without a will. This process, known as intestate succession, does not grant inheritance rights to unmarried partners. According to state law, the assets are distributed to family members in a set sequence. The surviving spouse is first in line, followed by the deceased's children. If there is no spouse or child, the property then goes to the parents, then to siblings, and finally to more distant blood relatives.

Missouri stopped recognizing common-law marriages in 1921. This means couples who live together—even for many years—have no legal spousal rights. The state also won't honor inheritance rights for domestic partners or those in civil unions from other states.

However, Missouri law does respect properly executed estate planning documents. This means unmarried partners can protect each other through wills, trusts, beneficiary designations, and other legal instruments. The key is creating these documents while both partners are alive and mentally competent.

Missouri also recognizes joint ownership arrangements. Unmarried partners can hold property as joint tenants with rights of survivorship, meaning the surviving partner automatically inherits the deceased partner's share. However, this arrangement requires careful planning and proper documentation.

Estate Planning Tools for Unmarried Partners

These tools make sure your partner is provided for in case of unexpected events. By utilizing these estate planning strategies, unmarried partners can safeguard their assets and their relationship despite the lack of legal marital status.

Last Will and Testament

A comprehensive will remains the foundation of inheritance protection for unmarried partners. Your will should clearly state your intention to leave assets to your partner and explain your reasoning. This documentation helps prevent family challenges and makes your wishes legally binding.

Revocable Living Trust

Trusts offer several advantages over wills alone. They allow property to transfer immediately upon your death without going through probate, which keeps your affairs private and reduces the chance of family interference. Trusts also provide flexibility for managing assets if you become incapacitated.

Beneficiary Designations

Many assets pass outside of wills through beneficiary designations. Update all your retirement accounts, life insurance policies, and bank accounts to name your partner as the primary beneficiary. These designations typically override instructions in your will, so keeping them current is vital.

Financial Power of Attorney

This document allows your partner to manage your financial affairs if you become unable to do so yourself. Without it, your family might need to pursue costly guardianship proceedings to handle your finances during a medical emergency.

Healthcare Power of Attorney and Living Will

Medical power of attorney gives your partner the legal right to make healthcare decisions on your behalf. A living will documents your preferences for end-of-life care. Together, these documents protect your partner's ability to advocate for your medical wishes.

Property Ownership Strategies

When you're planning for the future, you must consider how property ownership impacts your overall estate plan. Choosing the right strategy can guarantee your assets are managed and transferred according to your wishes.

Joint Tenancy with Rights of Survivorship

This ownership structure automatically transfers property to the surviving partner upon death. Both names appear on the deed, and when one partner dies, the survivor becomes the sole owner without probate proceedings.

Tenancy by the Entirety Alternative

While Missouri reserves tenancy by the entirety for married couples, unmarried partners can create similar protections through carefully structured trusts or limited liability companies that hold property for their benefit.

Life Estate Arrangements

A life estate allows one partner to transfer property to the other while retaining the right to live there for life. Upon the grantor's death, the property automatically belongs to the surviving partner.

Additional Protection Strategies

These strategies are particularly useful for guaranteeing clarity and security in the event of unexpected circumstances. They provide a foundation for protecting both parties' interests while addressing specific legal and financial concerns.

Regular Document Updates

Life changes constantly, and your estate planning documents should reflect your current situation. Review and update your documents after major life events like job changes, property purchases, or family developments.

Communication with Family

While not legally required, having honest conversations with family members about your relationship and wishes can prevent future conflicts. Consider introducing your partner to family members and discussing your estate plans when appropriate.

Financial Account Coordination

Consider opening joint bank accounts and credit cards to establish a paper trail of your shared financial life. This documentation can support your partner's inheritance claims and demonstrate the legitimacy of your relationship.

Estate Planning Attorneys in Kansas City, Missouri

At Heartland Estate Law, LLC, we strive to build future security through careful planning today. We take time to understand your goals, address your concerns, and recommend strategies to protect your assets and family. Our team provides guidance and education about sound financial management when needed. We proudly assist families in the Kansas City Metropolitan area, Missouri, and surrounding counties.