Guest v Guest — divided home-sale proceeds 47.5% to the applicants and 52.5% to the respondent, subject to costs and mortgage liabilities

Case
Mark Victor Guest and Another v Michelle Nicole Guest
Court
Supreme Court of Queensland (Australia)
Date Decided
22 May 2026
Citation
[2026] QSC 239
Topics
Co-ownership, Sale proceeds, Property improvements, Rent claim

Background

Mark Victor Guest and Anne Claire Middleton held a half interest in a Sunrise Beach property as joint tenants, while Mark Guest’s sister, Michelle Nicole Guest, held the other half as tenant in common. The property, purchased in August 2021 for $750,000 and occupied by Michelle Guest, was sold under contract for $1.195 million.

The proceeding began as an application to appoint a statutory trustee for sale under s 38 of the Property Law Act 2023 (Qld). By the hearing, the parties instead sought orders concerning distribution of the sale proceeds. The applicants claimed an equal division after selling costs, together with $7,977.50 in alleged unpaid rent from Michelle Guest. She sought $55,000, or an additional five percentage points, for painting, landscaping, fixtures, curtains, tree lopping and other work said to have improved the property.

The parties were self-represented, no witnesses were cross-examined, and significant factual disputes remained unresolved. Although photographs showed that the property had become neater and more modern, the evidence did not permit the Court to meaningfully quantify the improvements’ effect on its value.

The Court’s Holding

Treston J ordered that selling expenses be paid first, after which the applicants would receive 47.5% of the balance. Liabilities secured by registered mortgages were then to be discharged, and the remaining 52.5% was to go to Michelle Guest, less her secured liability. The 2.5-percentage-point adjustment from an equal division was a modest allowance for her actual outgoings and physical efforts in improving the property.

The Court accepted that Michelle Guest’s work had almost certainly contributed to the property’s increased value, while finding that most of the appreciation was probably attributable to rising property values over time. Referring to Squire v Rogers (1979) 39 FLR 106, the Court also noted that an improving co-owner cannot recover more than the amount of the co-owner’s outlay, even if the improvement produces a greater increase in value.

The claimed $7,977.50 rent deduction was refused because the evidence did not establish an agreement requiring Michelle Guest to pay that additional amount. The Court made no order as to costs and directed the parties to execute documents necessary for settlement, authorising the Registrar to act in place of any party who failed to do so.

Key Takeaways

  • In accounting between co-owners, the Court may adjust sale proceeds to reach a just and fair result under the Property Law Act 2023 (Qld).
  • Improvements and personal labour may justify a modest adjustment even where the evidence does not allow their precise value to be assessed.
  • An improving co-owner cannot receive more than the co-owner’s outlay merely because the work generated a larger increase in the property’s value.
  • A claimed deduction for unpaid rent requires proof of an agreement or other basis establishing the alleged liability.

Why It Matters

The decision illustrates the broad evaluative task involved when co-owners seek an accounting after sale. Imperfect evidence did not prevent a modest allowance for demonstrated effort and expenditure, but it constrained the size of the adjustment and prevented the Court from attributing the property’s full appreciation to the respondent’s work.

It also shows the practical importance of documenting agreements about rent, financing, expenses and improvements when relatives acquire property together. Without reliable evidence of those arrangements, a court may be unable to enforce claimed obligations or precisely reimburse asserted contributions.

⬇ Download the original opinion (PDF)Archived from the court's official source.
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