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Charlotte Posnansky

Senior Associate

Charlotte advises on all areas of family law.

charlotte-posnansky

About

Charlotte advises on all areas of family law. She focuses on financial remedy cases and has particular experience in complex and high value cases, involving a combination of trusts, business interests, offshore assets and often with international elements. She regularly advises on the drafting of pre-marital agreements, including in high and ultra-high net worth matters, as well as litigating to enforce/challenge pre-marital agreements upon a subsequent divorce. Charlotte also advises on all aspects of private children law including contact, residence and leave to remove applications.

Charlotte is committed to minimising the collateral damage of divorce on the family. She tailors her approach to all cases carefully to ensure clients’ interests are robustly protected whilst also minimising unnecessary conflict.

Charlotte has written numerous articles and given expert comment for the industry and popular press, including New Law Journal, Spears Wealth, The Times and Financial Times amongst others.

Charlotte is admitted to practise in England and Wales.

Experience

  • Assisted with a complex, international financial remedy case, acting for one of the spouses in a case involving a family business and assets worth several billion dollars. The case involved several parties and complex international trust arguments and was ultimately settled confidentially part way through a three-week High Court trial.

  • In a case concerning a family living between several different countries with very significant assets in complex tax planning structures across several different jurisdictions, Charlotte finalised a post-nuptial settlement from first draft to signed agreement in the space of a week

  • In a hard fought case, involving substantial pre-acquired assets protected by a pre-marital agreement, Charlotte successfully defended a challenge to the validity of the pre-marital agreement. She subsequently advised on implementation of the agreement, navigating significant disputes about value/tax treatment of most of the assets

  • Acted for Lady Judge in her application to the Court of Appeal to set aside judgment in her financial application on the basis of mistake, non-disclosure and supervening event

  • Advised in cases with domestic abuse including appropriate contact and residence arrangements for the children in the context of the abuse and financial proceedings

Recognition

  • UK_Legal_500_Recommended_lawyer_2026
  • legal-500-recommended-lawyer-2025
  • uk-recommended-lawyer-2024
  • citywealth leaderslist 2016(2)

Our thinking

  • Bitter taxation pills to swallow, arguably all the more indigestible for those separating or divorcing

    Charlotte Posnansky

    Quick Reads

  • The “former matrimonial mansion” – how the new “mansion tax” could reshape divorce

    Miranda Fisher

    Quick Reads

  • “Behind every statistic is a human being with a story” – What the latest ONS figures reveal about marriage, divorce and generational approaches

    Charlotte Posnansky

    Quick Reads

  • High Court confirms unconstitutionality of non-recognition of same-sex parentage as LegCo blocks Registration of Same-sex Partnerships Bill

    Lisa Wong

    Quick Reads

  • Pumpkins, properties and pensions: A Family Lawyer’s warnings ahead of the Autumn Budget

    Charlotte Posnansky

    Quick Reads

  • Potanina v Potanin – 11 years after their Russian divorce, Mrs Potanina has been granted leave to pursue a financial claim in England

    William Longrigg

    Quick Reads

  • Bankruptcy, beneficial interest and the battle for the family home

    Jamie Kennaugh

    Quick Reads

  • Miranda Fisher and Charlotte Posnansky write for the FT Adviser on the Supreme Court judgment in Standish - clarifying the reach and limits of the 'sharing principle' on a divorce

    Miranda Fisher

    In The Press

  • When Artificial 'Intelligence' invents Artificial Cases - how to navigate AI use in civil law proceedings?

    Charlotte Posnansky

    Quick Reads

  • Conclusive truth or abusive sleuth - can covert recordings be used in family law proceedings?

    Charlotte Posnansky

    Insights

  • My “15 Minutes of fame”, Eddie Redmayne and The Theory of Everything...

    Charlotte Posnansky

    Quick Reads

  • Sarah Higgins, Sarah Jane Boon, Miranda Fisher and Charlotte Posnansky write for Family Law Journal on how the 2024 budget is impacting family law

    Sarah Higgins

    In The Press

  • Balancing privacy and accountability: a new era for Family Justice

    Charlotte Posnansky

    Quick Reads

  • Private equity investments, divorce and the Budget....

    Charlotte Posnansky

    Quick Reads

  • “This is going to hurt” – potential implications of the forthcoming Budget on financial arrangements on divorce

    Charlotte Posnansky

    Quick Reads

  • Illegal to divorce in the Philippines - is this about to change and how does England recognise overseas divorces?

    Charlotte Posnansky

    Quick Reads

  • “My father was a toolmaker”; “My father was a GP” – The election politics of families

    Charlotte Posnansky

    Quick Reads

  • “Lead Linings Playbook” – A relationship and divorce involving Narcissistic Personality Disorder

    Charlotte Posnansky

    Insights

  • Oops!....I did it again - Britney's third divorce

    Charlotte Posnansky

    Quick Reads

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