Research — Presented paper

Leveraging LLMs for Efficiency in Family Law Research

Introduces Factsmith, a research tool built for the Legal Aid Bureau. It reads family-law judgments on divorce, custody and the division of matrimonial assets, and links every answer to the paragraph it came from.

Jonathan Su, Lydia Tan, Nicole Daduya, Jayme Loo, Isaac Lu, Bryan Liew and How Khang Lim

Isaac Lu Yang standing beside the ICAIL 2025 conference sign at Northwestern Pritzker School of Law, Chicago.
ICAIL 2025 · Northwestern Pritzker School of Law

Abstract

This paper investigates the use of Large Language Models (“LLMs”) to support legal research workflows in the domain of Singapore family law, specifically in divorce-related matters involving the division of matrimonial assets and child custody. In common law jurisdictions, legal research is particularly labour-intensive, as lawyers must extract legal principles from complex and often lengthy judicial decisions. This reliance on precedent makes case law a natural candidate for structured automation. However, the legal sector has been slow to adopt AI due to concerns over reliability, explainability, and professional trust.

This paper presents an automated research pipeline that integrates web scraping, LLM-based judgment analysis, and structured data extraction, supported by a verification mechanism to flag high-risk outputs and link them back to source text. The system achieved an average extraction accuracy of 96.67%, outperforming a human benchmark of 84%, while maintaining transparency through a “human-in-the-loop” review framework. The findings suggest that LLMs, when applied responsibly, are well-suited for upstream legal tasks such as case triage, intake, and research preparation—providing a viable and scalable approach to improving access to justice through the augmentation of legal research in common law systems.

Keywords Access to justice · legal research automation · large language models · legal technology · family law

Venue
AI for Access to Justice Workshop at ICAIL 2025, the 20th International Conference on Artificial Intelligence and Law
Where
Northwestern Pritzker School of Law, Chicago · 20 June 2025 · Workshop programme ↗
Authors
Seven, from Singapore Management University. All contributed equally.
Built for
The Legal Aid Bureau, which serves people who cannot afford private legal services