Katherine has a thriving practice encompassing all areas of family law. She has a particular interest in medical law, human rights arguments and jurisdictional cases. She regularly appears in the High Court and has appeared in the Court of Appeal on numerous occasions. She is a fearless advocate.
Private Law Team
Katherine regularly appears in the County Courts, the High Court and the Court of Appeal on a range of areas including:
- Medical operations
- Matters involving complex parental alienation issues
- Leave to remove from the jurisdiction
- International child abduction
- Fact finding hearings on sexual abuse allegations, incest, schedule 1 offenders and domestic violence
Public Law Team
Katherine has a thriving care practice and regularly represents parents, Local Authorities and children in a range of proceedings at both first instance and at appellate level involving:
- Jurisdictional issues
- Non accidental injury
- Sexual abuse
- Parental alienation
- Physical and emotional neglect
Katherine regularly advises and represents clients in cases issued under the Civil Partnership Act, Matrimonial Causes Act, TOLATA and under Schedule 1 of the Children Act. She also appears in court on matters concerning:
- Contested divorce (particular expertise in cases involving religion and the law)
- Applications to vary maintenance orders
- Transfer of tenancies
- Applications for child maintenance (pre and post 18 years under the MCA and sch.1 CA)
- Non-matrimonial assets and post accrual of assets
- The apportionment of assets generally
Cases of interest
- Mills v Mills  EWCA Civ 129
In the matter of X, Y and Z (children) (Retrospective Leave to Remove from the Jurisdiction)
-  EWHC 2439 (Fam)
- LM and DR (Return to Non-Convention Country)  EWHC 1943 (Fam)
- Re AO (Care Proceedings)  EWFC 36
- Re L and B (Children) (Specific Issues: Temporary Leave to remove from the jurisdiction; circumcision)  EWHC 849 (Fam)
- In the matter of JL and AO (Babies relinquished for adoption)  EWHC 440 (Fam)
- Guerroudj v Rymarczyk  EWCA Civ 743,  All ER (D) 152 (Jul)
- R (a child)  All ER (D) 168 (Feb)
- PAM & PAF (Mr and Mrs PA) v South Gloucestershire Council (LA) & Ors  EWFC B202
- Re NL (A Child) (Appeal: Interim Care Order: Facts and Reasons)  EWHC 270 (Fam)
Jafari v Bidaki  EWCA Civ 1760
- July/August 2017: with C. Lloyd-Smith: Parental Abduction within the UK (Issue 189 Resolution)
- March 2017: with F. Feehan QC: Varying maintenance: Mills, March  Fam Law
- November 2016: with R. Harrison QC and S. Craddock: 'Should I stay or should I go? Where the clandestine removal of a child from the jurisdiction is not unlawful: LM v DR’ November  Fam Law
- August 2016: with J. Chegwidden: 'A clear conclusion: religious circumcision for boys' August  Fam Law
- July 2016: 'Babies relinquished by foreign nationals: leading guidance': July  Fam Law
- With Frank Feehan QC Maintenance payments as a gateway to independence (Mills v Mills) (28.02.2017) interview with LexisNexis
- With K. Taft: English court exercises jurisdiction in retrospective leave to remove case (Re: X, Y and Z) (25.10.2016) interview with LexisNexis
- With R. Harrison QC: Summary return and competing jurisdictions (11.08.16) interview with LexisNexis
- Court considers transfer of tenancy on separation (23.07.15) interview with LexisNexis
Evidence and interim care orders (21.02.14) interview with LexisNexis
2nd Sep 2016
Babies relinquished by foreign nationals: leading guidance by Katherine Dunseath. JL v AO (Babies Relinquished for Adoption)  EWHC 440 (Fam),  FLR (forthcoming and reported at  Fam Law 556.
2nd Sep 2016
Court considers transfer of tenancy on separation. Katherine Dunseath discusses the Court of Appeal's recent decision in a dispute between two former cohabitants over a joint secure tenancy. Guerroudj v Rymarczyk  EWCA Civ 743,  All ER (D) 152 (Jul). Interview with Lexis Nexis.
2nd Sep 2016
Evidence and interim care orders. Discussing the judgment in Re NL, Katherine Dunseath predicts that the increasing push for transparency within the family justice system will result in the evidence of local authorities being subject to ever-increasing scrutiny by the court. Interview with Lexis Nexis.
2nd Sep 2016
Richard Harrison QC and Katherine Dunseath advise that the judgment in LM v DR emphasises the duties of those who pursue without notice applications. LM v DR  EWHC 1943 (Fam) Interview with Lexis Nexis.
3rd Mar 2017
Katherine Dunseath and Frank Feehan QC discuss the Court of Appeal's judgment in Mills v Mills, which highlights the financial ties afforded by joint lives maintenance payment. Katherine Dunseath, a barrister at 3PB Barristers, and Frank Feehan QC analyse how the Court of Appeal approached a cross-application for an upward variation of a joint lives maintenance order taking into account financial decisions made by a divorcing spouse over a 15 year period.
They discuss the Court of Appeal's judgment in Mills v Mills, which highlights the financial ties afforded by joint lives maintenance payment.
1st Nov 2016
English court exercises jurisdiction in retrospective leave to remove case (re X, Y and Z) – a Lexis Nexis interview by 3PB Family Barrister Katherine Dunseath and Ellis Jones' Katie Taft. Katherine Dunseath, a barrister at 3PB Barristers, and Katie Taft, a senior associate at Ellis Jones Solicitors, discuss a novel family case involving important issues of delay and settlement.
Katherine Dunseath (Call 2008) has a thriving practice advising on all aspects of family law. She regularly appears in the High Court and has appeared in the Court of Appeal on numerous occasions.
** This article was first published on Lexis®PSL. Family analysis on 25 October 2016. Click for a free trial of Lexis®PSL.
‘She has a forceful cross-examination style.’
Legal 500 2017/Regional Bar, South Eastern Circuit, Family and children law, Leading juniors
'An expert in cases with an international element, who fiercely protects her clients interests with professionalism and congeniality.'
Legal 500 2016/Regional Bar, South Eastern Circuit, Family and children law, Leading juniors
- BVC (2007) BPP London
- LLM (2006) University College London
- Employment law
- Advanced Medical Negligence
- European Community Environmental Law
- International Environmental
- Law GDL (2005) Brunel University
- BSc Geography (Hons) First Class (2004) Brunel University
- Stage Scholar, Grays Inn (2007)
- Prince of Wales Scholar, Grays Inn (2006)
- UKELA Moot Finalist (2006) Before Lord Slynn
Professional qualifications & appointments
- Judicial Assistant, Court of Appeal (March – July 2008)
- Blue Book Stagiaire, European Commission (October 2007- February 2008)
- Association of Lawyers for Children
- Child Abduction Lawyers Association (CALA)
- Family Law Bar Association
- Free Representation Unit
Katherine Dunseath is qualified to accept instructions directly from members of the public and professional clients under the Direct Public Access scheme.More Information
Katherine Dunseath shortlisted for 'Junior Barrister of the Year' by Family Law
3PB family barrister Katherine Dunseath has been shortlisted for the Family Law award as 'Junior Barrister of the Year'. Over the past 7 years, the Family Law A...Read more
Katherine Dunseath and Frank Feehan QC discuss the Court of Appeal's judgment in Mills v Mills, which highlights the financial ties afforded by joint lives maintenance payment
Katherine Dunseath, a barrister at 3PB Barristers, and Frank Feehan QC analyse how the Court of Appeal approached a cross-application for an upward variation of...Read more
3PB Family Barrister Katherine Dunseath successful in the court of appeal where the court ordered an upward variation of the ex wife's spousal maintenance payments.
Mills v Mills : Katherine Dunseath led by Frank Feehan QC successful in the court of appeal where the court ordered an upward variation of the ex wife’s...Read more