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Paul Williams

PhD candidate
Paul Williams is a PhD candidate researching smart legal opinions at the University of Surrey School of Law. He has extensive experience of working as a lawyer in the financial sector in London, and most recently as a senior consultant with D2LT. Email: paul.williams@d2legaltech.com

Articles by author

Automation and digitisation of capital markets closing opinions

Closing opinions are a familiar condition of capital markets and banking transaction closing. They provide independent legal assurance on matters such as entity status, capacity, authorisation, validity, binding effect, enforceability, conflicts, consents, governing law and reliance. These opinions are already relatively standardised in substance, but their key legal conclusions and limitations are still expressed primarily in prose, requiring manual extraction before they can be used in transaction and risk systems. Even when opinions are circulated electronically (such as in PDF form), their key conclusions, assumptions and qualifications are usually unavailable as data and must be read, interpreted and entered into other systems by hand. In fact in some cases, the PDF may still be in image-based form, and require an OCR process to make it machine-readable.
This article argues for a dual format model in which the traditional opinion letter retains its status as the authoritative legal instrument and is accompanied by a structured, machine-readable data layer linked to the relevant source text. It explains why this approach is increasingly necessary, identifies which elements are suitable for structuring, proposes a five-layer standards stack as well as outlining a pragmatic implementation roadmap. The objective is not to automate professional judgement, rather it is to make the standardised outputs of that judgement more usable, traceable and interoperable within modern capital markets infrastructure. We believe that is necessary to bring the digital agenda to legal opinions that are currently left behind in an analogue world.

26 SEP 2026