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Cohabitation Lawyers for Unmarried Couples

Protect your rights with our expert cohabitation lawyers. Get started today with a consultation to secure your living arrangements.

Cohabitation, or living together without being married, is an increasingly common choice for many couples. However, the legal framework surrounding cohabiting relationships differs significantly from that of married couples, especially when it comes to separation or property disputes. Our cohabitation lawyers provide clarity from the first meeting, and help get such issues resolved fast.

A common misconception is the idea of ‘common law marriage’. In reality, no such status exists under English law, meaning that cohabiting partners often face limited legal protection if the relationship ends. Simply living together for a period of time and/or having children does not grant partners the same legal rights as a married couple.

Our team of expert family lawyers in London and the South East offer specialist guidance to help protect your interests in a cohabiting relationship.

We are not just experts in current cohabitation law – we are also advocates for its evolution.

Whether you need guidance regarding a property dispute, drafting a cohabitation/separation agreement, or support regarding financial provision that may be available for your children, Thomas Mansfield´s cohabitation lawyers will provide you with expert advice.

Understanding your rights as a cohabiting couple.

Many couples choose to live together without getting married, but not everyone is aware of how this affects their legal rights.

Cohabitation agreements

A cohabitation agreement is a wise step for any couple planning to live together. This document clearly outlines who owns what and what will happen to each asset if you were to part ways.

Separation agreements

If you decide to part ways, a separation agreement can be an essential tool for unmarried couples. This legal document outlines how assets, debts, and other responsibilities will be handled post-separation. It helps both parties avoid disputes and ensures a clear, fair division of property, from savings to personal belongings.

Provision for children

If you have children together, we not only provide expert advice regarding the arrangements for your children following a separation but, can also advise you regarding the financial support that may be available to you. In addition to child maintenance, it may be possible to make financial claims for the benefit of your children, including property and lump sum orders, under Schedule 1 of the Children Act.

What clients say about us

Thomas Mansfield has an exceptional and highly collaborative team. Whenever my key point of contact has been away, issues are quickly picked up and dealt with by other members of the team, all of whom appear to have a great, collective and collaborative understanding of their clients’ issues.

Legal protection matters.

Cohabiting couples should consider legal protections like cohabitation agreements and wills to safeguard their rights. Without these protections, partners may face financial and legal difficulties, especially when it comes to property and inheritance.

At Thomas Mansfield Family Law, we help you take the necessary steps to protect your future and your partner's rights.

Starting is quick & easy

Get in touch. Call or request a callback, and we'll arrange a time to discuss your case in confidence.

Review and advise. We'll review your case and provide clear advice on your options and costs.

Proceed with confidence. Once you decide to proceed, we'll start right away, handling all necessary steps and guiding you through the process.

  • Legal 500 — Leading firm 2026
  • Chambers UK 2026 — Ranked firm
  • Resolution — Family department
  • Resolution — Specialist
  • Resolution — Collaborative family lawyer
  • Lexcel — Accredited (Law Society)

Frequently asked questions

How long will my case take?
Every family law matter is unique, so timescales depend on the specific circumstances and whether both parties can reach agreement. During your initial consultation, your solicitor will give you a realistic idea of how long the process is likely to take.
Do I need to go to court?
Not necessarily. Many family law disputes can be resolved through negotiation, mediation or collaborative law without the need for court proceedings. We always try to resolve matters outside of court where possible, but if court action is needed, we will guide you through every step.
How much does a family law solicitor cost?
Costs vary depending on the complexity of your case. We offer a confidential initial consultation where we can discuss your situation and provide a clear estimate of fees. We believe in transparency and will always keep you informed about costs as your case progresses.

Ready to talk things through?

Speak with our family law solicitors.

Family matters often involve important decisions about your future and your children. Our experienced family law solicitors provide thoughtful, specialist advice tailored to your circumstances.

Complete our form to arrange an initial discussion, or call us to speak directly with our family law team.

Contact us

020 7426 4915

Please note we cannot offer Legal Aid.

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