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Sarah Williams

SarahWilliams1 (1) (1)-min
Partner
SarahWilliams1 (1) (1)-min

Sarah is a Partner in the Payne Hicks Beach Family department and Head of the Modern Family Law Department.

Sarah is ranked in Chambers & Partners and The Legal 500 and is an integral member of the team which won Family Law Team of the Year at the Chambers High Net Worth Awards 2024. Individually, Sarah is shortlisted as Family Law Commentator of the Year 2024 at the forthcoming LexisNexis Family Law Awards. In 2023, Sarah was a finalist for both Family Law Partner of the Year and Family Law Commentator of the Year at the LexisNexis Family Law Awards.

Sarah has extensive experience in complex children law matters, often with an international and public law dimension, and concerning vulnerable and incapacitous individuals. Sarah advises parents and carers on matters concerning the safeguarding of children, frequently within the context of schooling.

Sarah is a leading authority in fertility, surrogacy and adoption law, advising on matters such as domestic and international surrogacy arrangements, donor conception and issues concerning parentage and gender. Her practice operates at the cutting-edge of family law and, as such, often intersects with public policy and human rights.

She is recognised in Chambers & Partners as being “very much at the cutting edge of case law with phenomenal client care”, having an “encyclopaedic knowledge of the law” and “being one of the most highly respected lawyers … spearheading applications of the law to new and emerging family forms”, by The Legal 500 as “Next Generation Partner”, a “stand out individual” and recommended by Spears.

Sarah works on complex, ultra-high net worth, high profile, multi-party sensitive children law matters with serious welfare considerations including, domestic abuse, coercive controlling behaviour, high-conflict disputes, alienating behaviours, abduction, international and domestic relocation of children and health and welfare disputes concerning vulnerable individuals, including those concerning capacity, gender and decisions regarding serious medical treatment.  Sarah is adept at applying for emergency relief as well as being known for her stamina and client care on long running, highly contentious cases. She advocates alternative dispute resolution where possible.

Sarah is prolific legal commentator; speaking at the American Bar Association’s Family Law Conference, the Annual Family Law Conference – Africa, at a European Chapter meeting for the International Academy of Family Lawyers, for The Law Society, and at conferences on Family Law in the Middle East and the Caribbean. She has written for The Times, The Guardian and The Financial Times, is an annual contributing author for the International Comparative Legal Guide (Family Law), regularly contributes to esteemed domestic and international family law journals and is a University Guest Lecturer on Family Law and Ethics. She was shortlisted for Family Law Partner of the Year and Family Law Commentator of the Year in the LexisNexis Family Law Awards. Sarah is ranked in Chambers & Partners and The Legal 500 and is named in the inaugural Pro Bono Recognition List, in recognition of her outstanding pro bono contribution in family law.

Sarah has recently successfully acted on behalf of the mother of a transgender adolescent in a case of significant public interest before the President of the Family Division Re S (Inherent Jurisdiction: Transgender Surgery Abroad) [2023] EWHC 347.

Sarah also successfully acted on behalf of the adopters in the contested adoption case of Prospective Adopters v London Borough of Ealing and Ors [2023] EWFC 294 (B). This was a case with particularly complicating and sensitive features.

Sarah spent the first decade of her career as a practising private and public family law Barrister at a leading set of chambers representing parents, children, guardians, Local Authorities and the Official Solicitor in complex and sensitive children law cases. Sarah’s practice included those concerning serious medical issues such as FII, non-accidental injuries to children, international adoption, international abduction, enforcement of foreign orders, international and domestic relocation of children and cases involving vulnerable adults. Appointed Junior Counsel to the Crown 2002.

Sarah qualified 1995 and joined Payne Hicks Beach 2020, Partner 2022.

To learn more about divorce and separation visit our dedicated webpage and download our guide.

To learn more about Modern Family Law visit our dedicated webpage and download our guide.

  • Chambers UK 2025: Sarah is ranked in the category of Family/Children Law. The directory writes that she “is deeply knowledgeable on the law surrounding fertility, surrogacy and adoption” and “in addition to this, she advises clients on private child disputes concerning contact, residence and welfare issues.” Commentary includes: “She is one of the go-to lawyers in the country for anything alternative family related. She is very efficient and she sees the bigger picture.”  “Sarah brings the qualities and experience of her time at the Bar and employs it very appropriately in her position as partner. She has exceptional client care.” “Sarah is extremely adept at dealing with tricky modern family matters. She is very much at the cutting edge of case law and her client care is phenomenal.” “Sarah wears her heart on her sleeve and she works incredibly hard for her client. She really goes the extra mile for them.”
  • The Legal 500 UK 2025: Sarah is ranked as a ‘Next Generation Partner’ in The Legal 500 UK 2025 under the category Family. The directory writes that “Sarah heads up the team’s modern family law offering, with extensive expertise regarding fertility, surrogacy and adoption law.” Commentary includes, “Sarah Williams is exceptional, particularly in the field of children law and modern families. I have worked with her on a number of complex cases within this field and she has been entirely dedicated to clients.”
  • LexisNexis Family Law Awards 2024: Sarah is shortlisted in the forthcoming awards in the category Family Law Commentator of the Year.
  • Chambers UK 2024: Sarah is ranked under the category of Family/Children Law.  The directory recognises that she is “deeply knowledgeable on the law surrounding fertility, surrogacy and adoption” and “in addition to this, she advises clients on private child disputes concerning contact, residence and welfare issues.” One commentator says, “Sarah works incredibly hard for her clients on some truly difficult cases and she has an encyclopaedic knowledge of the law.” Another says, “Sarah Williams is one of the most highly respected lawyers working on modern families in the UK, spearheading applications of the law to new and emerging family forms.”
  • The Legal 500 UK 2024: Sarah was ranked as a Next Generation Partner in The Legal 500 UK 2024 under the category of Family/Matrimonial and described as “an expert in international surrogacy, advising on co-parenting agreements with same-sex parents, and on declarations of parentage and the exercise of parental responsibility for gamete donors, same-sex parents and intended parents following surrogacy,” with further testimony stating that “her knowledge and expertise on modern families is second-to-none.”
  • Spear’s Family Law Index 2024: Sarah is named as a “Recommended Family Lawyer” by Spear’s Family Lawyers Index 2024 in which she is highlighted for her surrogacy, adoption work, fertility and modern family law practice.
  • Pro Bono Recognition List 2024: Sarah is named in the inaugural Pro Bono Recognition List 2024, in recognition of her outstanding pro bono contribution in family law.
  • LexisNexis Family Law Awards 2023: Sarah was shortlisted for two awards: Family Law Partner of the Year and Family Law commentator of the Year.
  • The Legal 500 UK 2022: Sarah was listed in The Legal 500 UK 2022 as a Next Generation Partner and a “stand-out individual” with “outstanding knowledge of modern families and fertility law issues.”
  • Citywealth Brand Management and Reputation Management Awards 2022: Sarah was awarded Winner of the ‘Best blog/podcast of the Year’ at 2022 Cityweath’s Brand Management and Reputation Awards 2022: Sarah’s award winning podcast series can be found here: https://www.phb.co.uk/?s&_sf_s=podcasts

  • Chair, Bar Liaison Committee, Inner Temple
  • Executive Committee, Inner Temple
  • Annual Guest Lecturer: Law and Ethics at Guy’s and St Thomas’ NHS Foundation Trust (Medical Foundation Programme).
  • Family Ambassador Board Member: Support Through Court Charity
  • Family Law Bar Association
  • Association of Lawyers for Children
  • American Bar Association (Adoption Committee and the Assisted Reproduction Technology Committee)
  • Member of the Franco-British Lawyers Society/Association des Juristes Franco Britanniques

2023: Notable reported case: Re S (Inherent Jurisdiction: Transgender Surgery Abroad) [2023] EWHC 347 before The President of the Family Division, Sir Andrew McFarlane Acting for the mother Pro Bono in this case of significant public interest before The President of the Family Division, Sir Andrew McFarlane. The case concerned the validity of an adolescent’s consent to transgender surgery, wardship, competing medical and legal positions here and in an anonymised foreign jurisdiction, human rights, domestic public policy and the appropriate engagement of the Inherent Jurisdiction of the High Court.

2023: Sarah successfully acted on behalf of the adopters in the contested adoption case of Prospective Adopters v London Borough of Ealing and Ors [2023] EWFC 294 (B). This was a case with particularly complicating and sensitive features.

2022: Notable reported case: R v S [2022] EWFC 6: Acting for the mother in an “unprecedented” application by the father for the disclosure of internal CCTV footage from mother’s household. The application raised grave issues concerning the mother’s right to privacy, proportionality and welfare. The father’s Application was successfully dismissed.

Sarah writes numerous articles and contributions in the national press (The Times, The Financial Times and The Guardian) and specialist law journals and, in particular, those with an international dimension. Sarah is a regular contributing author for the expert chapter on children and modern families for the International Comparative Legal Guide (family law) and for the International Family Law Journal.

Sarah is shortlisted as Family Law Commentator of the Year at the Family Law Awards 2024 and in 2023, she was shortlisted for both as Family Law Partner of the Year and Family Law Commentator of the Year at the Family Law Awards 2023.

 

2024: Speaking event: American Bar Association, Boston, USA: How Far can a Hague Treaty get us?

2024: Speaking event: 26th Annual Family Law Conference, in conjunction with the University of Western Cape, South Africa. Trans matter in the family court

2024: Publication: Spear’s: Why (U)HNW families should think twice before moving abroad for tax reasons

https://spearswms.com/law/why-hnw-families-should-think-twice-before-relocating-for-tax-reasons/

2024: Publication: Commentary: Spear’s: English family law is failing to keep up with changes in society

https://spearswms.com/law/english-family-law-is-failing-to-keep-up-with-changes-in-society-cohabitation-surrogacy/

2024: TV interview: BBC London News: Pitfalls of overseas surrogacy

https://www.bbc.co.uk/news/articles/cm528vv490go

2024: Publication: The Financial Times – Is ‘birdnesting’ the answer for divorcing parents

https://www.ft.com/content/3edfe4c0-df3e-4848-baa1-490a4f8e740a

2024: Publication: Commentary: Tatler: Thinking about surrogacy? Here’s why you need legal help.

https://www.tatler.com/article/importance-of-surrogacy-lawyers

2024: Publication: Today’s Family Lawyer: New fertility provision proposals for LGBTQ+ community and people living with HIV champion equality. Co-authored with Evelyn Collins of Payne Hicks Beach

https://todaysfamilylawyer.co.uk/new-fertility-provision-proposals-for-lgbtq-people-and-people-living-with-hiv-champion-equality/

2024: Publication: Family Law Week: Proposals for greater equality of fertility provision for LGBTQ+ people and people living with HIV. Co-authored with Evelyn Collins of Payne Hicks Beach.

https://www.familylawweek.co.uk/articles/proposals-for-greater-equality-of-fertility-provision-for-lgbtq-people-and-people-living-with-hiv/

2024: Teaching engagement: Guys and St. Thomas’ Medical School: Family Law and Ethics: Parentage, Capacity and Consent

 

2023: Podcast: My Surrogacy Journey: The My Surrogacy Journey Podcast: Episode 8: An Insight to how High-Profile Individuals Navigate their Surrogacy Journey

https://shows.acast.com/034e266c-e951-4b7f-a38b-880af79888bf/episodes/651172a75b90e600115e33d1

2023: Publication: International Comparative Legal Guide: Family Law 2024 (Expert Chapter)

https://iclg.com/practice-areas/family-laws-and-regulations/03-developments-in-modern-family-law

2023: Publication: International Family Law Journal (LexisNexis UK): Transgender matters and family law. Co-authored with Delphine Eskenazi and Yasmina Micu at Libra Avocats (France)

https://www.phb.co.uk/wp-content/uploads/2023/12/PDF-LEXIS-NEXIS.pdf

2023: Notable reported case: Re S (Inherent Jurisdiction: Transgender Surgery Abroad) [2023] EWHC 347 before The President of the Family Division, Sir Andrew McFarlane Acting for the mother Pro Bono in this case of significant public interest before The President of the Family Division, Sir Andrew McFarlane. The case concerned the validity of an adolescent’s consent to transgender surgery, wardship, competing medical and legal positions here and in an anonymised foreign jurisdiction, human rights, domestic public policy and the appropriate engagement of the Inherent Jurisdiction of the High Court.

https://www.phb.co.uk/article/inherent-jurisdiction-transgender-surgery-abroad-2023/

2023: Speaking engagement: Law Society Cross Border Event: New Challenges for Private Clients in Europe – Modern Families (co-presenter)

https://learn.lawsociety.org.uk/product/modern-families-new-challenges-for-private-clients-in-europe/

2023: Teaching engagement: Guys and St. Thomas’ Medical School: Family Law and Ethics: Parentage, Capacity and Consent

2023: Publication: International Comparative Legal Guide: Family Law 2023 (Expert Chapter)

2023: Publication: Family Law Journal. Lifting the Veil: Donor Identification. Co-authored with Jennifer Lee, Barrister  Lifting the veil: donor identification (familylaw.co.uk)

2023: Publication: Revista (Numero 83, Espana) : La gestación por subrogación en Europa: situación jurídica y enfoque comparativo entre Inglaterra y Gales, Francia, Italia y España. Co-author  https://www.sepin.es/revistas-digitales/familia-y-sucesiones/info-revista.asp?cde=54

 

2022: Notable reported case: R v S [2022] EWFC 65

Acting for the mother in an “unprecedented” application by the father for the disclosure of internal CCTV footage from mother’s household. The application raised grave issues concerning the mother’s right to privacy, proportionality and welfare. The father’s Application was successfully dismissed.

https://www.bailii.org/ew/cases/EWFC/HCJ/2022/65.pdf

2022: Speaking engagement: International Academy of Family Lawyers, European Chapter Meeting, Athens. Modern Family Law Developments

2022: Teaching engagement: Guys and St. Thomas’ Medical School: Family Law and Ethics in 2022

2022: Teaching engagement: Guys and St. Thomas’ Medical School: Addressing Issues of Capacity in 2022

2022: Teaching engagement: Guy’s and St. Thomas’ Medical School: The Changing Face of Motherhood in 2022

2022: Speaking engagement: An Examination of Modern Family Creation and Family Forms in 2022: Comparative European Approaches to Parentage, Payne Hicks Beach Event

2022: Publication: International Comparative Legal Guide: Family Law 2022 (Expert Chapter)

2022: Publication: International Family Law Journal: The Legal Status of Surrogacy in Europe – co-author

https://www.libra-avocats.com/wp-content/uploads/2022/06/Pages-from-IFL_2022_01_SWilliams.pdf 

2022: Publication: STEP Journal: Legal Conceptions

2022: Publication: AJ Famille, France: Le statut Légal de la gestation pour autrui en Europe – co-author

https://www.libra-avocats.com/wp-content/uploads/2022/06/ARTICLE-SURROGACY-FR-VERSION-DEFINITIVE.pdf

2022: Publication: My Surrogacy Journey blog: What’s in store for international surrogacy?

2022: Publication: International Family Law Journal: The Legal Status of Surrogacy in Europe – co-author

https://www.libra-avocats.com/wp-content/uploads/2022/06/Pages-from-IFL_2022_01_SWilliams.pdf 

2022: Publication: AJ Famille: Le statut Légal de la gestation pour autrui en Europe – co-author

https://www.libra-avocats.com/wp-content/uploads/2022/06/ARTICLE-SURROGACY-FR-VERSION-DEFINITIVE.pdf

2022: Publication: STEP Journal: Legal Conceptions

https://www.step.org/step-journal/step-journal-issue-2-2022

 

2021: Speaking Engagement: High-Conflict Parenting Disputes – new approaches. In association with OurFamilyWizard

https://www.phb.co.uk/article/our-family-wizard-high-conflict-parenting-disputes/

2021: Speaking Engagement: Informa Middle East: What Constitutes a Family: Working with non-traditional family structures relating to children

https://www.phb.co.uk/article/informa-connect-cross-border-planning-international-2021/

2021: Speaking Engagement: Informa Bermuda: Working with non-traditional family structures

2021: Speaking Engagement: Informa Cross Border Planning: Europe/International: What constitutes a family?

https://www.phb.co.uk/article/informa-connect-cross-border-planning-international-2021/

2021: Speaking Engagement: Chair of International Movement of Children Event, following the Supreme Court Decision G V G UKSC2020/0191

2021: Speaking Engagement: TL4 Private Client: Succession Planning for Modern Families

https://www.phb.co.uk/article/thoughtleaders4-privateclient-succession-planning-for-modern-families/

2021: Guest Lecturer: Guy’s & St Thomas’ Medical School: Family Law and Ethics in 2021

2021: Guest Lecturer: Guy’s & St Thomas’ Medical School: Addressing Issues of Capacity in 2021 TL4: Sudden Incapacity: Legal Implications under the Prevalence of Covid

https://www.phb.co.uk/legal-updates/thoughtleaders4-privateclient-sudden-incapacity-legal-implications-under-the-prevalence-of-covid-sarah-williams-and-jessica-henson

2021: Speaking Engagement: MSJ: Surrogacy in the USA: Where to Start?

https://www.phb.co.uk/article/surrogacy-in-the-us-where-to-begin-and-who-can-help/

2021: Speaking Engagement: Men Having Babies European Conference in Brussels: Parenting Options for Men: November 6-7 2021

2021: Publication: International Comparative Legal Guide: Family Law 2021 (Expert Chapter)

https://www.phb.co.uk/article/international-movement-of-children-child-abduction-asylum-regimes-relocation/

2021: Publication: Family Law: Covid-19 vaccination: capacity and best interests – the first reported Court of Protection Judgment

https://www.phb.co.uk/article/covid-19-vaccination-capacity-and-best-interests-the-first-reported-court-of-protection-judgment-sarah-williams-for-family-law/

2021: Publication: Family Law: Childhood vaccination disputes in the era of COVID 19

https://www.phb.co.uk/article/childhood-vaccination-disputes-sarah-williams-for-family-law/

2021: Publication: Capacity and sexual relations. Co-author. TL4

https://www.phb.co.uk/article/thoughtleaders4-privateclient-capacity-sexual-relations-a-radical-re-assessment/

2021: Publication: Tatler: The Heir and the Spare: or are they? Co-author

https://www.phb.co.uk/article/top-lawyers-explain-everything-you-need-to-know-about-surrogacy-and-peerages-sarah-williams-for-tatler/

2021: Publication: ThoughtLeaders4PrivateClient magazine February 2021 Issue 3: capacity & sexual relations – a radical reassessment – co-authored with Martha Gray of Harcourt Family Law

https://www.phb.co.uk/article/top-lawyers-explain-everything-you-need-to-know-about-surrogacy-and-peerages-sarah-williams-for-tatler/

2021: Publication: Future Lawyer blog lawbore: Surrogacy during a global pandemic

https://www.phb.co.uk/article/surrogacy-during-a-global-pandemic-interview-with-sarah-williams-for-future-lawyer-blog-lawbore/

2021: Publication: International Comparative Legal Guide: Family Law 2022. Trans-Parenthood and a Minor’s Ability to Consent to Gender-Changing Medical Treatment

https://www.phb.co.uk/legal-updates/iclg-family-law-2022-trans-parenthood-and-a-minors-ability-to-consent-to-gender-changing-medical-treatment

 

2020: Publication: STEP Journal: The Parentage Trap. Co-author

https://www.phb.co.uk/legal-updates/the-parentage-trap-jessica-henson-sarah-williams-for-step-journal

2020: Publication: Family Law: Surrogacy in unusual circumstances: X, Re [2020] EWFC 39

https://www.phb.co.uk/legal-updates/the-parentage-trap-jessica-henson-sarah-williams-for-step-journal

https://www.familylaw.co.uk/news_and_comment/surrogacy-in-unusual-circumstances-x-re-2020-ewfc-39

2020: Publication: Family Law Journal: Eyes Wide Open: transparency in the family courts

https://www.phb.co.uk/article/eyes-wide-open-transparency-in-the-family-courts-sarah-williams-for-the-family-law-journal/

2020: Publication: Family Law: Northamptonshire Healthcare NHS Foundation Trust v AB [2020] EWCOP 40

https://www.phb.co.uk/legal-updates/northamptonshire-healthcare-nhs-foundation-trust-v-ab-sarah-williams-for-family-law 

2020: Publication: The Times: Landmark ruling restricts puberty blockers for children

https://www.phb.co.uk/article/surrogacy-in-the-us-where-to-begin-and-who-can-help/

2020: Speaking Engagements include: Royal College of Obstetricians and Gynaecologists Professional Development Conference: The Changing Face of Motherhood

 

Podcasts:

A series of award winning Modern Family Law Podcasts: