Mandy practises primarily in matters concerning financial remedy for married and co-habiting couples. She has a particular interest in cases involving third party property interests and trust structures and is regularly instructed on cases involving pre and post nuptial agreements and their enforceability. Ranked in both legal directories over many years, Mandy also has strong international experience, acting on cases with assets throughout Europe, the Gulf region and Asia.

Mandy’s practice encompasses complex and high net worth cases involving complex business and investment structures, trusts, intervenors, hidden and offshore assets.

She has particular experience in cases with an international dimension and assets held outside of this jurisdiction. In recent years she has been instructed in substantive and in enforcement proceedings involving assets in Dubai, Singapore, China, Switzerland, Portugal and many other jurisdictions.

Mandy accepts instructions in courts of all levels, and as well as being instructed as sole Counsel, she is regularly instructed as junior counsel alongside a KC. She has appeared as a junior in a number of high net worth, complex financial remedy proceedings led by senior members of the Family Bar. She was recently led in the reported case of AB v CD [2022] EWFC 116 dealing with a set aside application when allegations of fraud were made.

Mandy takes a particular interest in cohabitation disputes under the Trusts of Land and Appointment of Trustees Act 1996 and accepts instructions through all stages of proceedings from settling pleadings to appearing at trial.

Mandy accepts instructions to settle and otherwise advise on pre and post nuptial agreements.

Mandy is available to conduct private FDRs

Reputation & Awards

“Always meticulously prepared and has an exceptional eye for detail. Clients take great confidence from her empathy and warmth, and her advice is intelligent, pragmatic and perfectly pitched. In court she is a natural advocate, capable of charm or ferocity as required.”

Chambers & Partners, 2024

“Her advocacy is fantastic and she can adapt her style to a change of judge, facts or opponent.” – Chambers & Partners 2024

“Mandy Tanner has been quietly carving out a reputation as an astutely tactical fighter for years.”  – Chambers & Partners 2024

“Mandy has excellent client care and interacts with instructing solicitors brilliantly. Her written and oral submissions are fantastic -her advocacy is calm, collected and has great attention to detail.” – Legal 500, 2024

“She quickly understands what the client wishes to achieve and puts them at ease. She’s a joy to work with.”  – Chambers & Partners 2023

“A tough opponent – you have to be on your A-game when you’re against her. She’s really good on the facts and the law. It’s not an easy day in court against her, but for all the right reasons.” – Chambers & Partners 2023

“Mandy is an excellent advocate, quick on her feet and always has the ear of the Judge. She is approachable and down to earth and liked by fellow advocates.” – The Legal 500 2023

“Calm and empathetic with clients, she delivers complex advice clearly and concisely.” – The Legal 500 2023

Awards and Scholarships

  • Major Scholarship, Inner Temple, 2008
  • Exhibition Scholar, Inner Temple, 2008
  • Pegasus Scholar, Inner Temple, 2009


  • BA Jurisprudence – St Peter’s College, Oxford University

Professional Memberships

  • Family Law Bar Association
  • South Eastern Circuit
  • Resolution

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