Why Valuation Standards Protect the Solicitor (Not Just the Valuer)

When I talk about the International Valuation Standards (IVS) being both a sword and a shield, I mean this:

• The shield: IVS protects your client and your instructions by ensuring the valuation is defensible; not just logical in theory, but anchored by well-defined methods and processes. It is these professional standards the Court recognises. It guards against the many bogus “rules-of thumb” and ad-hoc assumptions that populate fast-tracked and cheap documents. Sloppy and downright illogical interpretations, incorrect scope, and unsupported opinions can all be dismantled in cross-examination; adherence to the framework contained within the iVS eliminates that risk.
  
• The sword: Adherence to a common body of knowledge “the standards” gives you and your expert a defensible and logical framework to challenge other evidence where that evidence is weak, unfounded, or based on shortcuts. A valuation built on rigorous standards can cut through attempts to replace scientific appraisal with  fabricated “rules of thumb” and expose assumptions and hypotheses  that aren’t supported by the facts.
  

This matters in family law because courts do not decide property pool valuation disputes based on formulas; they decide them based on the quality of evidence and reasoning.

Here’s what the analogy looks like in practice:

Standards Are Not Templates — They Are Discipline

App-driven valuation tools and off-the-shelf methodologies are neither sword nor shield. They often produce numbers without a disciplined explanation of underpinning assumptions, or a recognised basis of value, premise of value and often – complete ignorance of the specific interest being valued.

A compliant IVS-aligned valuation is different because it forces clarity on:

• What interest is being valued? (e.g., control rights, minority entitlements)
  
• What benefits are provable and sustainable?
  
• What facts support the adjustments made?
  
• Which assumptions are required, and are they reasonable in the circumstances?
  

Any app can surely spit out a number because that is what they are coded to do. A standards-aligned valuation explains why that number holds up under scrutiny.

Experience and Maturity Make the Sword Sharper

The shield exists only if you know how to hold it. Likewise, the sword is only effective if the wielder understands how to use it.

That’s where experience and qualifications matter:

• A mature valuer knows which commercial facts matter most (again context, control, access to benefit, earnings sustainability against industry benchmarks).
  
• They know where shortcuts are most likely to lead to errors and dispute (related-party arrangements, informal tenure, personal goodwill).
  
• They can frame the valuation evidence in a way that anticipates and reconciles the questions the Court and opposing counsel will ask.

Practical Takeaways for Solicitors

If you are instructing a valuer in a family law matter, ask:

• Will the valuation be explicitly aligned to IVS (or a recognised standard)?
  
• Does the valuer understand and report clearly the instructions on basis, premise and interest being valued?
  
• Has the valuer assisted with purpose, approach, documented all assumptions and where they both came from and how they impact value?
  
• Can the valuer justify adjustments with provable facts, not apps or rules of thumb, and does the math add up?
  

These are not academic questions — they’re the difference between a valuation that survives testing and one that crumbles.

In summary:

IVS gives you a shield that protects the valuation evidence, and a sword that you can use to challenge inferior expert evidence. But the tools only work in the hands of someone who understands how to apply them, how to uncover the relevant facts, and how to present them clearly to a Court.

That’s where expert judgement — not apps — adds real value.