US-England divorce and separation

We provide specialist legal advice for couples and families navigating separation issues between England and Wales, the United States and other international jurisdictions.

Separation or divorce is always difficult. Where your life and finances span more than one country, the process can become significantly more complex.

Depending on the country and, in the US, sometimes the state involved, financial agreements and childcare arrangements can be dealt with using entirely different processes. If your situation involves England and the United States, our expert family lawyers will guide you through the process, helping you make informed decisions while reducing stress at an already challenging time.

US-England divorce

Our internationally recognised divorce lawyers are highly experienced in working out the best possible course of action following cross-border separations involving England and Wales, the United States and other international jurisdictions.

We understand how challenging this time can be and work proactively to reduce conflict and achieve a fair outcome for your family. Every situation is unique, so we collaborate with other experts in England, Italy and beyond to provide the best support for your circumstances.

Together, our expert team can support you by:

US-England nuptial agreements

International marital agreements are challenging, especially when dealing with different legal systems such as those of England and the United States, where sometimes the state involved use entirely different processes. 

Our team provides specialist advice on the best choices for pre-nuptial and post-nuptial agreements, ensuring they have the best chance of being upheld across borders. Whether you:

  • already have a US pre-marital agreement and wish to have a post-marital document,
  • are American and planning to marry,
  • are planning to marry an American or
  • if you wish live in America during your marriage,

we will guide you practically and compassionately through the process. 

As well as drafting agreements, we work with either our own Private Client expert lawyers or your trusted advisors to provide the comprehensive advice you need on tax and succession planning to ensure a secure future for your family. 

For couples with ties to both England and Wales and the United States, it's crucial to understand the differences between English prenuptial agreements and US pre-marital or marital agreements. 

In England, pre-nuptial and post-nuptial agreements are detailed contracts entered into by spouses before or after their wedding to outline their rights and obligations in the event of a divorce. They are often used for protecting assets such as family inheritances, business interests or significant personal wealth. 

While not automatically legally binding, English courts are increasingly likely to uphold these agreements, provided they have been entered into freely with full understanding of their implications, there has been an opportunity to take independent legal advice, material financial disclosure has been exchanged and most importantly the agreement itself caters for the needs of both parties. 

In the United States, the position varies significantly from state to state. Many states recognise pre-marital agreements as binding if they meet local legal requirements whilst others consider them a circumstance of the case and highly persuasive provided they are fair. However, fairness can mean different things in different states and states often have differing approaches to interpretation, disclosure and other legal formalities.  It is really important to take proper advice to ensure there are no nasty surprises about the validity of the agreement on divorce. 

Couples need to consider having agreements that are tailored to their specific circumstances and seek legal advice to help ensure those agreements are effective on both sides of the Atlantic. 

US-England children arrangements

Decisions about children are often the most sensitive and challenging aspect of any separation. Where they live, how much time they spend with each parent and financial support are all highly emotive issues. These cases must be handled especially sensitively. With our extensive experience in this area, we will support you in achieving the best course of action for your family as peacefully as possible. 

Any court proceedings will most likely take place where the child or children live at the time of the application is made to the court. In cases where there are English elements to the situation, we can advise on successful strategies for negotiation outside of court as well as within or the court proceedings. If your child or children are resident in the United States, we can work alongside leading US family lawyers so that any American proceedings can be handled effectively for you. 

When it comes to highly emotional child relocation disputes, we provide early strategic advice on the right steps to maximise your chances of successfully bringing or defending an application to relocate children. 

Ready to talk to us?

Our team of specialist family lawyers are here to support you if you're facing cross-border family issues between England and the United States. Speak to our team today. 

Our experts

Our US–England work is led by Brett Frankle, a highly regarded partner in our Family and Children team, known for his expertise in complex international family law matters. Brett has built a substantial cross-border practice and is recognised in leading legal directories for his work on high-value, multi-jurisdictional cases. 

He advises on the full spectrum of family law issues, including divorce, financial claims, cohabitation and private children matters (such as living arrangements, contact and schooling). He is particularly sought after for complex financial disputes, often involving international elements and sophisticated asset structures such as businesses, pensions, property portfolios, carried interests and trusts. 

Brett works closely with our Private Wealth team to help clients protect and structure their assets effectively, including advising on and drafting pre- and post-nuptial agreements in a cross-border context. 

A number of our family lawyers, including Brett, are fellows of the International Academy of Family Lawyers (IAFL). Being part of this network of exceptional foreign lawyers allows us to offer cross-jurisdictional advice on many family law issues involving England, the United States and other international jurisdictions. 

Our team 

Clients also benefit from the expertise of Partners Joanna Grandfield, Melissa Lesson and Rachel Donald, supported by Senior Associate Naomi Grimwood. Together, they offer deep experience in navigating international family law issues involving the US, delivering clear, strategic advice across jurisdictions.

Our expertise

Our family lawyers regularly advise on a wide range of family law issues involving the US, from preparing pre- and post-nuptial agreements to cross-border divorce and children’s cases where a parent wants to relocate back to the US following a separation. Some of our recent work includes: 

  • Advising a US private equity principal on a pre-nuptial agreement ahead of their wedding and planned relocation to New York ensuring their wealth was protected seamlessly across jurisdictions. 
  • Supporting a US client living in California through her divorce, successfully securing English jurisdiction and coordinating with our Private Client and Real Estate colleagues, as well as US advisers, to achieve a tax efficient and amicable outcome.  
  • Representing a high-net-worth US client in complex and heavily contested divorce, financial and children’s proceedings in England, involving multiple US states and significant cross-border issues. 
  • Advising a UK client with ties to both England and the US on a cohabitation agreement, including guiding them through the implications of de facto marriage laws in the US state in which they lived.  
  • Acting for a US client in divorce and financial proceedings involving substantial pre-marital wealth and trust structures, protecting their position while working towards a resolution.  
  • Assisting a US national living in England to secure a fair financial settlement, including the division of her US 401(k) pension via a QDRO, working closely with leading US lawyers. 
  • Helping a US-based father re-establish a relationship with his children in England, successfully securing arrangements across jurisdictions.
  • Supporting an unmarried mother following separation from her US partner, securing her suitable housing and maintenance for her child.

What others say about us

  • Mills & Reeve is exceptional. From top to bottom, they are extraordinarily talented lawyers and very bright.
    Chambers 2024
  • I always found them to be knowledgeable and reliable advocates and I had total confidence in their abilities to protect my interests, however complex the issues.
    Chambers 2024
  • I'm so fortunate to have found Mills & Reeve. They've approached my situation, and the work that has flowed from it, with such care, empathy and professionalism. They are a shining example and model for how all law firms should hold themselves, and operate.
    Legal 500
  • Excellent team with both strength and depth; they work extremely well and often collaborate on case management so that there is a coherent and strategic approach to the case right from the start.
    Legal 500
  • Mills & Reeve have a personable and down-to-earth approach. The advice they provide is practical and is always the most sensible approach to reach resolution as quickly as possible
    Chambers 2024

Resources

Explaining family law podcast

Facing a family law issue and not sure what's involved? Our podcast is the right place to start.

Family and children blog

Our family and children law blog provides practical advice and insight on a wide range of topics by our family and children lawyers.

YouTube Channel

Visit our YouTube channel to find a collection of videos from the familylawvvlogger, our podcast and short videos on a variety of family law topics.

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