Tatiana is an experienced family finance lawyer who specialises in advising individuals and families on complex financial matters, often with cross-border elements. She has particular expertise in financial remedy proceedings and has acted in cases of significant value and complexity.
Her work frequently involves coordinating with valuers, forensic accountants, tax advisers and overseas counsel. She has advised on matters involving luxury assets, trusts, and international property portfolios, and has experience tracing assets where there is suspicion they may be concealed.
Tatiana also assists clients seeking protection from controlling or abusive relationships, as well as those facing mental health challenges, approaching these matters with empathy and discretion.
Tatiana works closely with private clients and family offices to deliver tailored solutions. Fluent in Russian, she regularly advises international clients with global ties.
Tatiana displayed a remarkable blend of professionalism, empathy, and expertise. What sets Tatiana apart is her genuine compassion and dedication to her clients. She is a true advocate and an exceptional professional who will go above and beyond to fight for your rights and your family's well-being.
Client, Family Finance
Tatiana guided me through a difficult time with her generosity and professionalism.
Client, Family Finance
Thanks to her empathy, professionalism and hard work, the outcome I achieved was better than I anticipated.
Client, Family Finance
Tatiana not only understood the emotional toll of financial proceedings but also guided me through the difficult choice. Her ability to balance strategic legal advice with sensitivity to my personal circumstances was invaluable.
Client, Family Finance
I worked with Tatiana Amdur on a prenuptial agreement, and Tatiana was phenomenal. She demonstrated a highly strategic mind, an empathetic outlook, and maintained prompt and impressive communication throughout the process. On a humanistic level, you feel that she really cares and works hard to get her clients the best outcome. I can’t recommend her enough.
Client, Pre-Nuptial Agreement
Expertise
- Divorce and Financial Settlement
- Jurisdictional Issues (Financial)
- Non-Married Couples
- Pre- and Post-Nuptial Agreements
- Personal Protection
- Cohabitation Contracts
Experience
Divorce and Financial Settlement
- Secured favourable settlements for HNW clients through financial remedy proceedings involving trusts, offshore assets, business interests, and inherited wealth.
- Acted in TY v XA [2024] EWFC 96, the first reported case applying the new Potanina v Potanin test under Part III.
- Represented UHNW individuals in divorces involving asset portfolios exceeding £200m, with property, companies, and investments across multiple jurisdictions.
- Experienced in handling cases discreetly for high-profile clients, including those in the public eye.
- Worked closely with forensic accountants and valuers to identify, trace, and divide hidden or undervalued assets.
Jurisdictional Issues (Financial)
- Acted in jurisdiction races to establish proceedings in England in high-stakes financial cases.
- Represented clients with assets in Russia, Europe, USA, the Middle East, and offshore jurisdictions.
- Advised on mirror orders.
Non-Married Couples
- Represented clients in property ownership disputes following the breakdown of cohabiting relationships.
- Advised on financial entitlements where significant contributions had been made outside marriage.
- Acted in disputes involving jointly owned businesses between unmarried partners.
Pre- and Post-Nuptial Agreements
- Drafted pre-nuptial agreements for entrepreneurs with family businesses and significant inherited assets.
- Negotiated post-nuptial agreements involving property portfolios in multiple jurisdictions.
- Worked with international counsel to ensure enforceability of nuptial agreements across borders.
Personal Protection
- Represented victims of coercive control and harassment in urgent non-molestation proceedings.
- Secured occupation orders excluding abusive spouses from the family home.
- Advised clients on protective measures in parallel with divorce and financial proceedings.
Cohabitation Contracts
- Drafted agreements for couples with significant property holdings to ensure clarity on ownership and contributions.
- Advised on agreements with cross-border elements where couples maintained homes in multiple countries.
High-Net Worth Family Office
- Advised family offices on structuring pre- and post-nuptial agreements for heirs to protect inherited wealth.
- Acted in financial remedy proceedings involving assets exceeding £200m across trusts, companies, and offshore structures.
- Coordinated with valuers, accountants, and tax advisers on the division of luxury assets including fine art, yachts, and private aircraft.
- Worked alongside international counsel on jurisdiction disputes involving multi-jurisdictional property portfolios.
- Regularly advises Russian- and CIS-connected clients on cross-border financial matters.
Private Client
- Represented clients in High Court financial remedy cases involving complex asset tracing.
- Secured favourable settlements in cases involving concealed wealth and offshore trusts.
- Acted in TY v XA [2024] EWFC 96, the first reported case applying the Potanina v Potanin test under Part III.
- Advised on protecting clients from abusive or coercive partners.
- Drafted cohabitation agreements and advised on property disputes under TOLATA for non-married couples.
- Drafted pre- and post-nuptial agreements.
Please note: The experience list above may include examples of work completed prior to joining Keystone Law.
Career
Tatiana qualified as a solicitor in 2019. Prior to joining Keystone Law in 2025, she worked at Vardags.