Thomson Reuters names eight Keystone Law partners in its Stand-out Lawyers Guide 2026
Andrea James, Andrew Darwin & Anna McKibbin
Lucas is a specialist employment barrister with a busy courtroom and advisory practice, acting for both claimants and respondents in complex statutory employment disputes. He has extensive experience across discrimination, whistleblowing, unfair dismissal, victimisation, reasonable adjustments, and procedurally complex matters including anonymity, third‑party disclosure, legal professional privilege, and international jurisdiction.
Lucas frequently appears in the Employment Tribunal and has represented clients in the Employment Appeal Tribunal on several occasions. Lucas has represented a wide variety of employers in the local government, retail, fashion, hospitality, manufacturing, energy, finance, education, and healthcare sectors. Lucas has also represented individuals (including senior executives) working in healthcare, finance, energy, hospitality, retail, professional services, and higher education.
In addition to his employment practice, Lucas has a growing commercial disputes practice, advising on contractual disputes, data protection, company law, and insolvency law.
Lucas is a native Portuguese speaker and is fluent in conversational Spanish.
Lucas advises on the full range of statutory employment disputes, acting for both claimants and respondents in complex discrimination, whistleblowing, and unfair dismissal matters, as well as procedurally complex cases.
Experience
Lucas advises on all aspects of Employment Appeal Tribunal litigation, including grounds of appeal, procedural issues and advocacy.
Experience
Lucas advises senior executives and regulated professionals on internal investigations, misconduct allegations, and regulatory implications involving the SRA, ICAEW, and FCA.
Experience
Lucas advises on contractual disputes, data protection, corporate insolvency, personal bankruptcy, and company law.
Experience
Lucas advises academic institutions, teachers, and senior academics on employment, regulatory, and discrimination matters across schools, universities, and educational organisations.
Experience
Lucas advises employers, senior executives, and regulated professionals, including those in finance, professional services, healthcare, hospitality, and energy.
Experience
Lucas regularly advises and represents local authorities and NHS Trusts in employment matters.
Experience
Please note: The experience list above may include examples of work completed prior to joining Keystone Law.
Recognised by The Legal 500 for Senior Executives 2025–2026
Member of the Employment Lawyers Association – Pastoral Committee and Pro Bono Committee
Member of the ‘NextGen’ Consulting Editorial Board, LexisNexis Employment Practical Guidance
Member of the Employment Law Bar Association
Member of the London Bar Association
“Lucas handles a range of Employment Tribunal cases, and excels at matters related to neurodiversity.”
The Legal 500 2026
“Lucas excels in Employment Tribunal matters, particularly those involving neurodiversity.”
The Legal 500 2026
“Lucas Nacif is also very good and has prepared some excellent submissions.”
The Legal 500 2025
“Lucas Nacif is extremely intelligent and on top of the law. His legal expertise shines through at every stage.”
The Legal 500 2025
“Lucas prepared excellent submissions and provided clear strategic direction throughout our case.”
The Legal 500 2025
Lucas qualified as a barrister in 2021. He initially trained at Farore Law, is now a member of 42BR Barristers, and is currently on secondment at Keystone Law.