When families co-own property without legal advice or formal agreements, they often encounter the following legal and financial pitfalls:
1. Unclear Ownership & Contribution Disputes
Without proper documentation, family members may later dispute their respective ownership shares or financial contributions. These disagreements often escalate into litigation or applications for a court ordered sale. Clear records and professionally drafted written agreements significantly reduce these risks.
2. Informal Agreements Often Unenforceable
Verbal or handshake agreements carry little legal weight and are difficult to enforce if expectations change. What begins as a good faith family understanding can unravel over time, leaving parties unprotected. Written agreements ensure clarity and avoid disputes grounded in differing recollections.
3. No Exit Strategy (Forced Sale Risks)
If co-owners cannot agree on selling or exiting, the absence of a structured plan may leave a forced sale under s.66G of the Conveyancing Act 1919 (NSW) as the only option. This process is costly, stressful and often damages family relationships. An agreed buyout or exit mechanism avoids such deadlocks.
4. Succession & Estate Planning Complications
If an ownership structure is not clearly understood, it can lead to unintended outcomes when a co-owner dies, especially where joint tenancy or intestacy rules apply. Families may assume assets will follow their wills, only to discover title arrangements override these intentions. Early legal advice ensures ownership aligns with succession plans.
5. Mortgage Liability & Financial Exposure
Joint borrowers are each fully liable for the entire mortgage, regardless of any informal “split” of repayments. If one co-owner defaults or faces bankruptcy or divorce, the others may face financial exposure or risk of sale. A formal agreement can allocate responsibilities and protect against these scenarios.
6. Tax & Stamp Duty Consequences
Transfers of interests between family members commonly trigger stamp duty and potential Capital Gains Tax, even where transfers occur at nominal value. A lack of documentation can also create uncertainty around deductions, land tax and principal residence exemptions. Proper structuring prevents unexpected tax liabilities.
7. Difficulty in Sale or Separation Scenarios
Relationship breakdowns or disagreements can stall decisions about sale, valuation or use of the property when no agreed process exists. Minor disagreements can rapidly escalate without a defined mechanism for resolution. A co-ownership agreement provides clarity on rights, decision making and exit procedures.
Summary
Entering a shared property arrangement without legal advice or formal documentation exposes families to avoidable legal, financial and relational risks. A well drafted co-ownership agreement clarifies contributions, responsibilities and exit rights, reducing the likelihood of disputes. Early legal planning is far more cost-effective than resolving conflicts later.
Below is a Table summarising the key issues:
| Risk | Implications of Not Formalising |
| Ownership disputes | Without paperwork, family members can later disagree over who owns what share. Results in costly court fights or even a forced sale to break the deadlock. |
| Informal deal not enforceable | Handshake agreements and verbal promises carry little legal weight. Either party can back out, and the other has no guaranteed recourse. |
| No exit strategy | No agreed plan for one party to sell or be bought out means stalemate if someone wants to leave. The only solution may be a court-ordered sale (s.66G application), which is stressful and expensive. |
| Succession surprises | Incorrect ownership structure can defeat intentions: e.g. joint tenancy bypasses your Will entirely, while tenancy-in-common without a Will can create succession issues. Heirs may not get what everyone expected. |
| Mortgage & debt liability | All co-borrowers are 100% liable on the loan. If one defaults, others must pay the full amount. A co-owner’s bankruptcy or creditors can force a property sale, dragging the family home into external disputes. |
| Tax & duty costs | Transferring shares later (even to family) triggers stamp duty and possibly CGT on the market value, even if no money changes hands. Lack of upfront advice can lead to unexpected tax bills when unwinding or adjusting the arrangement. |
| Sale or separation complications | If the relationship breaks down (within the family or between co-owning partners), the property can become “stuck.” Without predetermined terms, resolving who keeps or sells the home often requires litigation, causing delay and financial loss. |
Each of these risks is amplified when no lawyer is involved at the start. In the NSW context, obtaining legal advice upfront means families can choose the appropriate ownership structure (joint tenancy vs. tenancy in common), document any loans or gifts among themselves, clarify responsibilities (for mortgage, rates, upkeep), and set out clear mechanisms for exit or resolving disagreements. This upfront effort is far cheaper and safer than untangling a messy dispute later.
For further information and to request a copy of our Shared Equity Property Checklist for Families (NSW), please email: enquiry@mullanelindsay.com.au
For further advice about any of the following please contact:
- For advice about creating a proper structure with appropriate documentation: enquiry@mullanelindsay.com.au
- For advice about Succession Planning: willsandestates@mullanelindsay.com.au
- For advice about a dispute with co-owners: enquiry@mullanelindsay.com.au / or susan.burgess@mullanelindsay.com.au
