Halloran Vesey LLP

Halloran Vesey is a full-service commercial law firm whose technology and data group advises employers, payment providers and insurers on the EU AI Act and UK and EU data protection law. The AI practice sits within the firm's London office, with French-qualified lawyers in Paris who handle matters before the French and EU authorities. Typical instructions include classifying systems under the Act's risk tiers, advising deployers of recruitment and underwriting tools on their obligations, drafting AI use policies and supplier terms, and preparing the technical documentation and conformity evidence required for high-risk systems ahead of the 2027 deadlines. Work is priced either as a fixed fee for a defined project or on a monthly retainer that gives a client a named partner, a set number of hours and priority turnaround on regulatory queries; retainer bands are shared with prospective clients but gap-analysis pricing depends on scope and is quoted case by case. The firm does not carry out technical testing, bias audits or ISO certification work, and refers those to specialist providers. Every engagement is led by a solicitor admitted in England and Wales.