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Company

Keystone Law

Position

Partner

Index

Family Lawyers

Location

London

Advice type

Children law

Cohabitation

Cross-border

Divorces

Financial remedies

International child relocation

Prenuptial and postnuptial agreements

Asset Class

Trusts

Client type

City professionals

Entrepreneurs

HNW

Sector Focus

Legal Advisory Services

Teresa Cullen

Spear’s Review

Keystone Law partner Teresa Cullen’s family law practice is guided by a fundamental principle of adopting a clear strategy at ‘the earliest opportunity’.

Cullen’s caseload encompasses financial issues arising from divorce and separation, often with an international element, and private children work, including relocation and child arrangements. She joined Keystone in 2025 after more than a decade at Fladgate, and receives many referrals from previous clients, all of whom ‘are highly intelligent, professional people in their own fields’, she says.

Alongside her legal practice, Cullen is also a trained psychotherapist. She tells Spear’s that this extra training – and understanding of the psychological undercurrents clients might be facing – makes her better prepared and more patient. ‘When I’m practicing as a lawyer, I’m very much practicing as a lawyer, but I do think about the understanding of human behaviour [too].’

Rank: Recommended

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