The Rise of Co-Ownership in 2026: Legal Risks Friends & Families Overlook
The Scene
You cannot afford a house. Your best friend cannot afford a house.
But together? Together, you have a 20% deposit and a solid combined income.
You find a great townhouse in the suburbs. You sign the contract, split the mortgage 50/50, and pop the champagne. “We beat the system!” you think.
Fast forward three years.
Your friend meets someone, gets engaged, and wants to sell the house to move away.
You love the house and want to stay, but you cannot afford to buy out their half.
The arguments start. The friendship fractures. Now, you are both facing a forced sale through the Supreme Court, losing tens of thousands in legal fees.
In 2026, “Co-Buying” with friends or siblings is the fastest-growing trend in Victorian real estate. But if you do not legally structure the purchase correctly on Day 1, it is a financial time bomb.
Here are the critical legal risks co-owners overlook.
1. The “Joint Tenants” Trap (The Death Clause)
When you sign the Transfer of Land, you must tick a box: Joint Proprietors or Tenants in Common. Most friends blindly tick the first one.
The Danger: “Joint Proprietors” includes the Right of Survivorship. If you die in a car crash, your 50% share automatically goes to your friend. It does not go to your parents or your children, no matter what your Will says.
The Fix: Friends and siblings should almost always buy as *Tenants in Common*. This allows you to specify shares (e.g., 60/40) and leave your share to your own family in your Will.
2. The Mortgage Reality: “Joint and Several Liability”
You think you are only responsible for your 50% of the mortgage. The bank disagrees.
When you sign a joint mortgage, you accept Joint and Several Liability.
If your sibling loses their job and stops paying their half, the bank will demand the full repayment from you. If you cannot pay it, the bank will repossess the house, destroying both of your credit ratings.
3. The Missing “Exit Strategy” (Co-Ownership Agreement)
This is the biggest mistake buyers make. People plan the purchase, but nobody plans the exit.
What happens if one person wants to sell and the other doesn’t?
Without a legally binding Co-Ownership Agreement, you have no ground rules. You may be forced to apply to VCAT or the Supreme Court under the Property Law Act to force a sale. It is a slow, bitter, and expensive process.
A Co-Ownership Agreement dictates:
- How the property is valued if one buys the other out.
- The mandatory notice period for wanting to sell.
- What happens if someone defaults on their mortgage share.
4. The “New Partner” Complication
You bought the house with your sister. Two years later, her boyfriend moves in.
Is he paying rent? Does that rent go to you or just her? If he contributes to renovations, is he quietly acquiring a legal stake in the property under family law?
Without a written agreement detailing who can live in the house and under what financial terms, a third party can accidentally acquire rights to your asset.
The Verdict
Property co-ownership is a brilliant way to break into the 2026 market. But a handshake agreement over a beer will not hold up in court when life circumstances change.
Our Advice:
- Tick the Right Box: Instruct us to register you as Tenants in Common on the title.
- Draft the Rules: Never buy with a friend without a formal Co-Ownership Agreement drafted by a lawyer.
- Update Your Will: The moment the property settles, update your Will to reflect who inherits your specific share.
At Prime Legal Conveyancing, we do not just process the property transfer. We protect your relationships and your money by structuring co-purchases safely.
Buying with a friend or sibling? Send us the contract before you sign.
