What is an expert witness property valuation?
An expert witness valuation is an independent market value report prepared specifically for litigation, complying with the relevant Court's expert evidence rules. The valuer's overriding duty is to the Court — not to the party paying the fee. The report must disclose every assumption, document every methodology choice, and be capable of being defended on cross-examination by senior counsel.
"An expert witness has an overriding duty to assist the Court on matters relevant to the expert's area of expertise. An expert witness is not an advocate for a party."
When you need an expert witness valuation
We are routinely engaged in:
- Family law property settlements (single expert and shadow expert).
- Partnership, shareholder and trust disputes.
- Family provision (testator family maintenance) claims.
- Disputes with the ATO over CGT, GST or land tax positions.
- Compulsory acquisition and resumption matters.
- Mortgagee disputes and breach-of-contract claims.
What sets an expert report apart
An expert report is not just a valuation with a different cover page. It must:
- State the expert's qualifications and experience.
- Acknowledge the duty to the Court (the 'overriding duty').
- Set out the questions asked and the materials relied upon.
- Disclose every assumption and the reasoning behind every opinion.
- Identify any matters outside the expert's expertise.
- Be capable of being defended on cross-examination.
Engagement types
We accept the full range of expert engagements and tailor scope and fees to the procedural posture of the matter.
- Single expert — jointly retained by both parties under a joint letter of instruction.
- Shadow expert — engaged by one party to review or test the other party's expert evidence.
- Joint expert (after conferral) — preparation of a joint report identifying agreed and disputed issues.
- Court-appointed expert — appointment by the Court itself under Pt 23 UCPR or equivalent.
The expert's duty to the Court
Every expert report we issue is accompanied by an acknowledgement of the expert's duty under the relevant Practice Note or Rules. That duty overrides any obligation to the party who instructed (or paid) the expert. We accept only matters where we can give that acknowledgement honestly — including refusing engagements where we have a prior relationship with the property, party or transaction.
Single expert vs shadow expert
Choosing the right type of expert is a strategic decision. The table summarises the differences.
| Aspect | Single (joint) expert | Shadow expert |
|---|---|---|
| Retainer | Both parties jointly | One party only |
| Report served on | Both parties + Court | Instructing party only (privileged) |
| Cost-sharing | Shared 50/50 | Borne by retaining party |
| Cross-examination | Available to both parties | Generally not called |
| Best for | Family law, low–medium dispute | Strategic review, high-stakes matters |
How it works — five steps
- 1
Conflict check & engagement
We complete a written conflict check against the property, parties and solicitors, then issue an engagement letter setting out scope, fees and timing.
- 2
Letter of instruction
We work with your solicitor on the letter of instruction — defining the questions, the materials, the date of valuation and any assumptions.
- 3
Inspection & research
Internal and external inspection where access is permitted; comprehensive comparable research using RP Data, Pricefinder, APM and council records.
- 4
Draft report & conferral
Draft expert report delivered for review (subject to the Court's directions). Where directed, we attend conferral with the opposing expert and prepare a joint report.
- 5
Hearing attendance
Final signed report served on the Court. We attend mediation or hearing as required and are available for cross-examination on agreed dates.
Glossary
Plain-English definitions of the terms used in this report and in related ATO guidance.
- GPN-EXPT
- Federal Court of Australia Expert Evidence Practice Note. Governs the form of expert reports and the duty owed to the Court.
- Schedule 7 (Family Law Rules)
- Sets out the requirements for expert evidence in family law proceedings, including the form of single expert and adversarial expert reports.
- UCPR Pt 23 / Pt 31
- State Uniform Civil Procedure Rules governing expert witnesses in commercial and civil litigation.
- Single expert
- An expert jointly retained by all parties to provide independent evidence on a specified issue.
- Shadow expert
- An expert engaged by one party (usually under privilege) to review and test the evidence of another party's expert.
- Joint report
- A document prepared after conferral between opposing experts identifying agreed and disputed issues — heavily relied on by the Court.
- Overriding duty
- The expert's primary obligation to assist the Court impartially, which prevails over any duty to the party paying the fee.