John is a leading dispute advisory expert and has many years’ experience in advising clients and providing objective analysis of transactions in major commercial disputes.
He draws on skills from accounting, finance, costing and general commercial advice to deliver analysis and opinions on issues that generally involve large data sets or complex issues. A significant part of
John's work involves the provision of valuation advice related to assets, equities and other matters in dispute settings.
He has delivered many valuation and expert reports across a wide range of industry settings. His experience covers government, financial services, energy and natural resources, industrial markets, property and construction, infrastructure and telecommunications.
John provides expert evidence in commercial matters where there are significant differences (or disagreements) of financial outcomes. This role requires the preparation of simple yet comprehensive reports and financial models to assist the court or arbitration.
His work is acknowledged for its objective nature and conceptual merit, for example: “[the court] accept[s] that in giving his evidence, Mr McGuiness was a true professional witness.” Another matter observed “in relation to matters of expert judgement and objectivity, [the court] preferred the evidence of Mr McGuiness. His approach was partic...
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John McGuiness is a first-rate practitioner who provides expert valuation and forensic analysis in high-stakes commercial arbitration proceedings across various sectors, including energy, infrastructure and telecommunications.