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International people

Joined-up legal advice for internationally mobile individuals and families, helping you protect your wealth, family, reputation and interests wherever life, work and investment take you.

International people need advisers who understand that their legal requirements rarely fit neatly into a box. A move, marriage, investment, business decision or succession plan can engage several countries and several areas of law at once.

We advise internationally mobile individuals, families, entrepreneurs, senior executives, family offices and their advisers. We bring together private client, family, immigration, employment, corporate, real estate and disputes specialists, coordinating trusted overseas counsel where local advice is required.

Whether you are moving to or from the UK, investing here, managing assets and family relationships across borders, or planning for the next generation, we give you a clear strategy and a practical route to implementation.

How we can help

Our international people team can support you through every stage of life.

Moving to or from the UK

  • UK residence and long-term residence

  • Pre-arrival and departure planning

  • The foreign income and gains regime

  • Inheritance tax exposure

  • Remittance

  • Reporting and compliance

  • Coordination with advisers overseas.

International estate and succession planning

  • Coordinated UK and overseas wills

  • Succession law and forced heirship

  • Cross-border probate and estate administration

  • Trusts, foundations and family investment companies

  • Planning for vulnerable or younger beneficiaries.

Immigration and nationality

  • Visa and nationality matters for individuals and families

  • Investor, entrepreneur and work routes

  • Dependant applications

  • Settlement and citizenship

  • Coordination with tax, employment and relocation planning

International family law

  • Pre- and post-nuptial agreements

  • Jurisdiction and forum disputes

  • International divorce and financial claims

  • Overseas assets, trusts and pensions

  • Children arrangements, relocation and abduction

  • International surrogacy and parenthood

UK property and lifestyle assets

  • The purchase, ownership, financing and sale of UK homes and investment property

  • Ownership through trusts, companies or partnerships

  • Tax and disclosure issues

  • Planning for art, aircraft, yachts and other high-value assets

Philanthropy and global giving

  • Structuring charitable giving in the UK and overseas

  • Charitable trusts and foundations

  • Governance

  • Tax-effective international donations

  • Collaboration with charities and philanthropic advisers

Businesses, investment and employment

  • Establishing, acquiring, selling or investing in UK businesses

  • Shareholder and partnership arrangements

  • Family business governance and succession

  • Employment and remuneration issues for internationally mobile executives

  • Incentives and carried interest

Disputes, reputation and risk

  • International trust and estate disputes

  • Commercial and shareholder claims

  • Asset tracing and enforcement

  • Tax investigations

  • Privacy, data and reputation management

  • Urgent protective action across jurisdictions

Get in touch

Our team of legal experts are here to support you. Contact one of our lawyers today.

Our experience

Some examples of our recent work include:

  • Advising an internationally mobile family on UK residence, long-term residence and inheritance tax exposure, while coordinating US estate and gift tax advice and reviewing recently executed US wills.

  • Helping a family with assets and family members in the UK, US and India put coordinated wills, guardianship and trust arrangements in place.

  • Advising UK-resident beneficiaries and offshore trustees on distributions, historic gains and income, trust restructuring and compliance following the post-April 2025 tax reforms.

  • Supporting an entrepreneur and family office with the acquisition and ownership of UK property and business interests, combining private client, corporate, tax and real estate advice.

  • Advising on forum, overseas assets, trusts and enforcement in a cross-border relationship breakdown.

  • Coordinating immigration, employment, tax and estate planning for an internationally mobile senior executive relocating to the UK.

  • Administering an international estate involving assets, personal representatives and advisers in several jurisdictions.

  • Structuring international philanthropy so that an individual could support overseas causes in a practical and tax-efficient way.

Specialist advice, seamlessly connected

International lives bring together legal, tax, commercial and personal issues. Our specialists work as one team, giving clients a joined-up view and coordinating overseas counsel through M&R Global.

International tax, estate and succession planning

Advice on residence, long-term residence, UK tax exposure, international wills, trusts and succession planning.

International family law

Support where relationships, children, assets or court proceedings span more than one country.

Immigration

Visa, settlement and nationality advice, coordinated with wider tax, employment and family planning. 

Residential property

Advice on buying, owning, financing and selling homes in England and Wales.

Corporate law

Advice for entrepreneurs, investors and families on companies, transactions, governance and ownership structures.

International trust and estate litigation

Resolving cross-border disputes concerning trusts, estates, fiduciaries and beneficiaries.

What our clients say about us

  • The department is highly responsive, takes care of all cases with the same level of expertise, and excels in making complex cross-border issues look simple.

    Chambers High Net Worth Guide 2026

  • An excellent children department. They have recently obtained a legal aid contract so they can do complex international child abduction cases, which is innovative for a department that serves a high-net-worth client base.

    Legal 500, 2026

  • As a firm, Mills & Reeve is able to draw on a wide range of services and experience to provide a comprehensive legal service.

    Chambers Private Wealth Law 2026

Who do our international private wealth lawyers work with?

We work with people whose personal, family or financial lives cross borders, including:

  • Internationally mobile individuals and families

  • High-net-worth and ultra-high-net-worth individuals

  • Entrepreneurs, founders, investors and business owners

  • Senior executives, partners and professionals

  • Family offices and private investment offices

  • Trustees, trust companies, protectors and foundations

  • Executors, personal representatives and beneficiaries

  • Professional advisers, including accountants, tax advisers, wealth managers, banks and overseas lawyers

Why choose Mills & Reeve? 

International expertise, delivered as one team.

  • A genuinely cross-disciplinary service

  • Deep experience of international tax, trusts, succession, family and business issues

  • Clear project leadership and coordination with trusted overseas lawyers and existing advisers

  • Practical advice that balances tax efficiency with family, commercial, reputational and lifestyle priorities

  • A focus on implementation, governance and long-term resilience, not simply technical analysis

  • Responsive, discreet and commercially aware support for complex and sensitive matters

  • Clear scoping, cost transparency and a focus on adding value for you as a client

Get in touch

Our team of legal experts are here to support you. Contact one of our lawyers today.

Meet the team

Related content

Explore practical guidance for internationally mobile families and their advisers:

  • Private Affairs hub
    • Insights on private wealth, family and owner-managed business issues.
    Read Private Affairs
  • Latest private client publications
    • Updates on tax, succession, trusts and estate planning.
    View resource
  • International family law insights
    • Guidance on cross-border relationships, children and financial matters.
    Find out more

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