“Sarah Anticoni is recognised as one of the leading figures in family mediation and dispute resolution, combining exceptional legal expertise with a remarkable ability to help families find constructive paths through complex personal and financial challenges. Equally accomplished in high net worth financial disputes and sensitive children matters, she is admired for her calm authority, strategic insight and talent for achieving resolutions that protect both relationships and long-term interests.”

Fantastic Lawyers® Editorial 2026

Sarah Anticoni is a Partner specialising in family law, family mediation and alternative dispute resolution. Her practice focuses on complex financial claims arising from divorce, future arrangements for children and the resolution of high-value family disputes involving international assets and cross-border issues.

As both an experienced litigator and an award-winning mediator, Sarah offers clients a rare combination of technical expertise and practical dispute resolution skills. She is frequently instructed in cases involving substantial wealth, international families and sensitive children matters.

What Sarah Anticoni does

Sarah advises and mediates across a broad range of family law matters, including:

• High net worth and ultra-high net worth divorce
• Complex financial settlements
• Family mediation
• Child arrangements and parenting disputes
• Pre-nuptial and post-nuptial agreements
• International family law matters
• Cross-border wealth protection
• Spousal maintenance disputes
• Relocation cases involving children
• Religious and civil marriage recognition and dissolution

Her work regularly involves wealthy individuals, business owners, international families and clients seeking to resolve disputes outside of the court process wherever possible.

Why she stands out

Sarah is perhaps best known for her exceptional mediation practice.

Recognised by peers as one of the leading mediators in London, she is trusted to help families resolve highly sensitive disputes that might otherwise result in lengthy and expensive court proceedings.

Clients and fellow professionals consistently praise her ability to remain calm during periods of crisis, identify practical solutions and move seemingly impossible negotiations forward.

As both a trained collaborative lawyer and mediator, Sarah strongly believes that many family disputes can be resolved more effectively through constructive dialogue than adversarial litigation.

A recognised leader in family mediation

Sarah’s mediation practice attracts referrals from many of the UK’s leading family law firms.

Her experience includes mediating:

• Complex financial settlements
• High net worth family disputes
• International family law matters
• Child arrangements disputes
• Maintenance variation and capitalisation claims
• Cross-border parenting disputes

Her reputation in this area is reflected by the exceptional praise she receives from the legal profession.

“Sarah Anticoni is the standout mediator in the team, indeed the standout mediator in London. Hugely experienced and highly effective. She is highly empathetic and extraordinarily able at dealing with people in crisis.” – Legal 500 UK 2026

“Sarah Anticoni is one of London’s most experienced and sought-after mediators. She achieves excellent results, and the feedback after is always positive.” – Legal 500 UK 2026

“She is the go-to choice for high net worth mediations or complex international matters in relation to children or finance.” – Chambers High Net Worth 2025

International family law expertise

As a Fellow of the International Academy of Family Lawyers (IAFL), Sarah is recognised internationally for her expertise in cross-border family law matters.

She has specialist knowledge of the recognition and dissolution of both religious and civil marriages and frequently advises clients whose family, financial or cultural circumstances span multiple jurisdictions.

Her work often requires coordination with lawyers, tax advisers and financial experts across different countries to achieve practical and enforceable outcomes.

Representative experience

Sarah’s experience includes:

• Representing a financially dependent spouse in complex international divorce proceedings involving hidden overseas wealth and interim asset protection measures
• Mediating the variation and clean-break capitalisation of existing spousal maintenance arrangements
• Mediating child contact arrangements before, during and after contested international relocation proceedings involving the United States
• Negotiating post-nuptial agreements designed to protect family wealth while coordinating cross-border tax advice and international marital agreements

Awards and recognition

Sarah is consistently recognised by Chambers UK, Chambers High Net Worth, Legal 500, Spear’s and Doyle’s Guide as one of the UK’s leading family law and mediation practitioners.

Her accolades include:

• Legal 500 Hall of Fame
• Chambers UK Ranked Lawyer
• Chambers High Net Worth Ranked Lawyer
• Doyle’s Leading Mediator 2025
• Spear’s 500 Recommended Family Lawyer
• Jordan’s Family Law Dispute Resolution Practitioner of the Year
• Fellow of the International Academy of Family Lawyers (IAFL)

She is regularly quoted by major national and international publications including the Financial Times, The Times, The Independent, City AM, Mail Online and specialist private wealth publications.

Thought leadership

Sarah is a recognised commentator on developments in family law and mediation. She frequently writes and speaks on topics including:

• The benefits of family mediation
• No-fault divorce
• Pre-nuptial agreements and wealth protection
• Cohabitation law reform
• Cross-border family disputes
• Children’s welfare and dispute resolution

Her practical insights and commitment to improving family dispute resolution have made her one of the most respected voices in the field.