Moving in together typically begins with exciting yet practical conversations: selecting furniture, dividing the monthly rent, and coordinating daily routines. Most partners naturally assume that if they share a home and a life for a long enough time, the law will step in to protect them if the relationship eventually comes to an end.
The legal reality is different. Without formal documentation, unmarried partners live without the safety net that marriage provides. If a long-term relationship ends, there is no divorce court to divide assets fairly, separate joint debts, or order financial support. You can share a life with someone for decades and still walk away with only the items purchased in your own name.
A cohabitation agreement for unmarried couples closes this gap. This guide explains how these contracts work, what protections they offer, and how Ohio and other states treat the property rights of partners who choose to live together without marrying.
What Is a Cohabitation Agreement?
A cohabitation agreement is a legally binding contract between two unmarried people who share a residence. It sets out how the partners will handle their finances, divide their property, and manage joint debts, both during the relationship and if they separate.
Unlike a prenuptial agreement, which only takes legal effect upon marriage, a cohabitation agreement applies to partners who are not marrying. It takes effect while they live together and gives immediate structure to their shared financial life. If a couple later decides to wed, they typically draft a new marital agreement to address their change in legal status.
The Legal Rights Unmarried Couples Don’t Have
Marriage comes with a built-in set of statutory protections. When unmarried partners separate, they quickly discover that none of these automatic property or support rights apply to them.
The Common Law Marriage Myth
Many people believe that living together for seven years automatically creates a common-law marriage. In reality, living together never creates a marriage on its own. Only a small minority of states (including Colorado, Iowa, Kansas, Montana, Rhode Island, Texas, Utah, and Washington, D.C.) still allow couples to form new common-law marriages in 2026. Oklahoma’s status on the question remains legally contested. A few other states recognize common-law marriages only if they were created before a specific historical cutoff date.
No Automatic Property or Support Rights
Without a legal marriage, partners have almost none of the legal rights for unmarried couples that people assume come with a shared life. If the relationship ends, property generally belongs to the person whose name is on the title or the receipt.
One partner can pay toward a mortgage for a decade, but if they are not on the deed, they may leave with nothing. Joint debts become a standoff, and there is no built-in right to alimony or support after a split.
Who Needs a Cohabitation Agreement?
Couples who keep their finances fully separate, rent an apartment together, and split every bill down the middle may not need a formal contract. Most couples, though, blend their financial lives gradually over time.
A cohabitation property agreement becomes essential if you meet any of the following criteria:
- Buying real estate together: You are purchasing a home, especially when contributions to the down payment or mortgage are unequal.
- Co-signing loans: You are taking on joint auto loans, credit cards, or personal debt.
- Opening joint accounts: You pool income into a shared checking or savings account.
- Supporting a partner: One partner covers most living expenses while the other attends school or starts a business.
- Pausing a career: One partner stays home to manage the household or raise children, giving up earning potential in the process.
Are Cohabitation Agreements Legally Binding?
Yes, courts generally enforce these documents as ordinary contracts. The turning point came in the 1976 California Supreme Court case Marvin v. Marvin, which established that unmarried partners can form enforceable contracts about their property and earnings.
The key requirement is valid consideration, a bargained-for exchange of value, that stands apart from the couple’s sexual or romantic relationship. Enforceability is stronger still when each partner has independent legal counsel, and both sides exchange full financial disclosure before signing.
Written vs. Oral and Implied Agreements
A few states theoretically recognize oral or “implied” agreements based on a couple’s behavior, but proving those in court is difficult and expensive. Some states, such as Texas, require cohabitation agreements to be in writing at all. A signed, drafted contract is the most reliable way to protect your assets.
States That Won’t Enforce Them
A handful of states still refuse to enforce these agreements, often citing older public-morality doctrines or policies tied to the abolition of common-law marriage. The table below shows how the approaches differ across the country.
| How states treat cohabitation agreements | Where this applies | What it means for you |
| Enforced as ordinary contracts | Most states, following Marvin v. Marvin | A written agreement built on real, relationship-independent consideration is generally valid |
| Written agreement required | Texas, among others | An oral or implied understanding will not hold up; the contract must be signed and in writing |
| Generally not enforced | Georgia and Louisiana; Illinois (narrow exceptions only) | Courts may refuse to honor the agreement, so local counsel is essential |
If you live in a state that limits or rejects these contracts, an attorney can help you find alternative tools that accomplish the same goals.
What to Include in a Cohabitation Agreement
The exact terms depend on your financial situation. The agreement can be broad enough to cover your entire shared life or narrow enough to govern a single purchase.
Property, Income, and Debt
A thorough agreement should make clear who owns what. Common provisions address:
- Prior assets: Identifying the property each partner brings in and confirming it stays separate.
- Joint purchases: Setting out how furniture, vehicles, or investments bought together will be owned and divided.
- Income management: Deciding whether earnings are pooled into joint funds or kept in separate accounts.
- Debt allocation: Determining who is responsible for credit card balances, student loans, and joint debts if the couple separates.
Buying a Home Together
Real estate is often a couple’s largest asset, which makes it the highest-stakes issue in a breakup. The agreement should address how the property is titled.
Joint tenancy with right of survivorship means that if one partner dies, the other automatically inherits the home. Tenancy in common lets each partner own a set percentage that they can leave to someone else in a will. The contract should also spell out a buyout mechanism, so one partner can purchase the other’s share of the equity if the relationship ends.
Support After a Breakup
Because the law provides no support between unmarried partners, the agreement can build its own structure instead. Palimony is the popular term for post-breakup support of this kind.
Partners can agree in writing that one will pay the other a set amount for a fixed period after a separation, or they can waive any right to seek support entirely.
What a Cohabitation Agreement Can’t Do: Children and Estate Rights
These contracts offer strong financial protection, but they have firm legal limits. An agreement cannot override state law on minor children, and it cannot, on its own, decide what happens if a partner faces a medical emergency.
Child Custody and Support
Parents cannot predetermine or waive child custody or child support through a private contract. If a dispute arises, a court decides custody based on the child’s best interests at that time. Child support is a legal right that belongs to the child, so parents cannot bargain it away. Learn more about how courts handle custody for unmarried parents.
Protecting Your Partner in Death or a Medical Emergency
An unmarried partner is not a legal heir. By default, they have no automatic right to inherit your assets or to make medical decisions if you become incapacitated. A cohabitation agreement alone does not change this.
To protect the rights of unmarried couples living together, partners should pair the agreement with companion estate-planning documents:
- A last will and testament: Directing who inherits your separate property.
- Financial power of attorney: Letting your partner manage your finances if you cannot.
- Healthcare power of attorney: Giving your partner authority to make medical decisions on your behalf.
- Beneficiary designations: Assigning transfer-on-death (TOD) or payable-on-death (POD) instructions to bank and retirement accounts.
Cohabitation Agreements in Ohio
If you live in Franklin, Fairfield, or Delaware County, your contract must comply with Ohio law. A cohabitation agreement that Ohio courts will enforce has to account for the state’s firm stance on unmarried relationships.
Ohio Doesn’t Recognize Common Law Marriage or Palimony
Ohio abolished common-law marriage for any relationship established on or after October 10, 1991. Marriages validly created before that date may still be recognized. Ohio also does not recognize palimony, which means there is no support obligation between unmarried partners unless a valid, enforceable contract exists. These agreements are governed by ordinary contract law, not by Ohio’s marital-agreement statutes.
What Williams v. Ormsby Means for Your Agreement
The Supreme Court of Ohio set the rules for these contracts in the 2012 case Williams v. Ormsby. The court held that moving in together and resuming a romantic relationship, acting out of “love and affection,” is not sufficient consideration to form a contract.
Ohio applies that consideration requirement strictly. For a court here to enforce your agreement, it must rest on a genuine, bargained-for exchange, such as paying specific bills, transferring property rights, or contributing money, and it should always be in writing.
Why Choose The Meade Law Group
Relying on a downloaded template puts your financial future at risk. A drafted, individualized agreement meets the requirements of contract law, contains real consideration, and rests on full financial disclosure. At The Meade Law Group, our family-law attorneys know how to structure unmarried couples’ property rights so they hold up in court.
Our work goes beyond the agreement itself. We build a complete plan around your shared life, coordinating the contract with the estate and property documents that make it enforceable and protect you if the relationship or a partner’s health ever changes.
Our services include:
- Drafting and reviewing agreements: Creating clear, legally binding contracts tailored to your financial goals.
- Coordinating companion estate documents: Preparing the wills and powers of attorney that let you make medical decisions and inherit shared assets.
- Protecting property and home ownership: Structuring buyout mechanisms and advising on correct titling for real estate.
- Representing clients in disputes: Standing up for your rights if a cohabitation contract is challenged after a breakup.
Contact The Meade Law Group to schedule a confidential consultation.
Frequently Asked Questions (FAQs)
| Question | Answer |
| Can we change or cancel our agreement after we sign it? | Yes. Partners can modify or revoke a cohabitation agreement at any time, as long as both agree to the change. To keep it enforceable, put any modification or cancellation in writing and have both partners sign it. |
| What happens to the agreement if we eventually get married? | Marriage does not automatically cancel the agreement, but once you wed, marital law governs your relationship and can override much of it. Partners who want specific financial arrangements to carry into the marriage should sign a prenuptial agreement before the wedding. |
| Is the agreement still valid if we move to a different state? | A contract executed legally in one state is generally still valid in another. Because state laws on unmarried couples vary so widely, though, have a local attorney review your agreement whenever you establish residency somewhere new. |
| Can we use a single attorney to draft the agreement for both of us? | No. One attorney cannot represent both partners, because your financial interests can conflict. Each partner should retain their own counsel to review the document before signing. |
| Will an agreement protect my credit score if my partner defaults on a loan? | The agreement can assign responsibility for specific debts and let you seek reimbursement if your partner fails to pay. It does not stop a creditor from reporting a missed payment when your name remains on a co-signed loan. |
