Buying a home together is a major milestone. Whether it's a condo in downtown San Diego, a home in Carlsbad, or an investment property elsewhere in California, purchasing real estate is often one of the biggest financial decisions a couple will make.
Unfortunately, relationships don't always last as long as mortgages.
When an unmarried couple separates, one question often rises above all the others: What happens to the house?
Maybe one person wants to sell while the other wants to stay. Maybe one person paid the down payment, while the other made most of the mortgage payments. Or maybe communication has completely broken down, leaving both people feeling trapped in a property they no longer want to own together.
The good news is that California law provides a way to resolve these disputes.
In many situations, a co-owner can ask the court to order the sale of jointly owned property through a legal process called a partition action. While not every disagreement ends up in court, understanding your rights early can help you make informed decisions and avoid costly mistakes.
At Nevels Nichols, LLP, we represent clients throughout San Diego and California in partition actions and other real estate disputes. Below, we'll explain what unmarried couples should know when they own property together and their relationship comes to an end.
Unmarried Couples Have Different Property Rights Than Married Spouses
One of the biggest misconceptions we hear is that unmarried couples have the same legal rights as married couples when they separate.
Generally, they do not.
California's community property laws usually apply only to married spouses and registered domestic partners. If you and your former partner purchased a home together without getting married, ownership is generally determined by traditional property law rather than family law.
That means questions like these become especially important:
- Who is listed on the deed?
- Did both parties contribute financially?
- Was there an agreement regarding ownership?
- Has one person continued paying the mortgage after the breakup?
These cases are often resolved in civil court rather than family court, making them very different from a typical divorce proceeding.
The Deed Usually Controls Ownership
When someone contacts our office about a co-owned property dispute, one of the first questions we ask is: Whose name is on the deed?
The deed—not the mortgage—is usually the starting point for determining ownership rights.
This is an important distinction because many people assume that being responsible for the loan automatically means they own the property. That's not necessarily true.
You can:
- Be on the mortgage but not own the property;
- Own the property without being personally liable for the mortgage; or
- Be both an owner and a borrower.
If both former partners are on title, they generally each have ownership rights. If only one person's name appears on the deed, the analysis may become more complicated, particularly if the other person contributed toward the purchase or significantly invested in the property.
Can My Ex Force Me to Sell the House?
In many cases, yes.
California law generally does not require co-owners to remain tied together indefinitely simply because they cannot agree on what to do with a property.
If one owner wants to sell and the other refuses, the law provides a remedy through a partition action.
For most single-family homes, the court is unlikely to physically divide the property. Instead, the property is often ordered sold, with the proceeds distributed after accounting for liens, costs, and any financial adjustments recognized under California law.
Not every disagreement requires litigation. In many situations, the parties reach an agreement before a lawsuit is filed. But when negotiations fail, a partition action may provide the legal mechanism needed to move the dispute forward.
If you'd like a more detailed explanation of the process, read our Partition Lawsuit in San Diego: Your Guide to California Property Disputes, where we walk through the partition process from start to finish.
What If One Person Paid More?
Very few couples split every housing expense equally.
One person may have paid the entire down payment. The other may have covered most of the monthly mortgage payments. One owner may have invested thousands of dollars remodeling the kitchen or replacing the roof.
These facts matter.
Depending on the circumstances, California courts may consider contributions such as:
- Down payments;
- Mortgage payments;
- Property taxes;
- Insurance;
- Major repairs; and
- Capital improvements.
Because every situation is different, it's important to keep records of significant financial contributions. Bank statements, receipts, invoices, and closing documents often become important pieces of evidence if a dispute arises.
Do You Have to Go to Court?
Not necessarily. In fact, many co-ownership disputes are resolved without a trial.
Depending on the circumstances, former partners may decide to:
- Negotiate a buyout;
- Sell the property together;
- Participate in mediation; or
- Reach a settlement after a lawsuit has been filed but before trial.
An experienced real estate attorney can often help evaluate these options while protecting your rights if negotiations are unsuccessful.
Common Mistakes We See
When relationships end, it's understandable to want to move on as quickly as possible. But rushing decisions—or avoiding them altogether—can create bigger problems later.
Some of the most common mistakes include:
Waiting too long to address the issue. Mortgage payments, property taxes, insurance, and maintenance don't stop simply because a relationship has ended.
Failing to document expenses. If you're continuing to pay for the property, keep organized records of every payment.
Assuming everything will automatically be split equally. California law is often more nuanced than many people realize.
Relying on general advice from the internet. Every property dispute is different, and the specific facts often make all the difference.
Frequently Asked Questions
Can my ex force me to sell our house?
In many circumstances, yes. If both parties own the property and cannot agree on what should happen, California law may allow one owner to seek a partition action.
What if we were never married?
Being unmarried does not prevent a court from resolving a property dispute. Instead of family law, these cases are generally governed by California property law.
What if I paid the entire down payment?
That may become an important issue when determining how proceeds should ultimately be distributed. Every case depends on its particular facts.
What if my ex refuses to move out?
Occupancy disputes are common in partition cases. Depending on the circumstances, the parties may negotiate a buyout, agree to sell the property, or ask the court to resolve the dispute.
Talk to a California Partition Attorney
Owning property with a former partner can quickly become stressful—especially when neither person agrees on what should happen next.
The sooner you understand your legal rights, the more options you may have to protect your investment and work toward a practical resolution.
Whether you own a home in San Diego, Chula Vista, La Mesa, Encinitas, or elsewhere in California, Nevels Nichols, LLP represents clients in partition actions and other real estate disputes involving jointly owned property.
If you're facing a disagreement over a home you own with a former boyfriend, girlfriend, fiancé, or other unmarried partner, our team is here to help you understand your options and develop a strategy that fits your goals.
