Susi Gillespie

Susi Gillespie

Partner, Director & Head of Family Law

01892 337542 / 07765 237579
[email protected]

Susi Gillespie is a results driven family lawyer with more than 16 years’ experience family law. Susi joined Thomas Mansfield’s Tunbridge Wells office in late 2017 to set up the firm’s Family department and was appointed a director in 2019. The 16 strong team now numbers 10 lawyers, 1 trainee and 5 paralegals and support staff.

The 2022 edition of The Legal 500 recognised Thomas Mansfield’s Family department’s “strong presence in the South East/Kent and clearly established reputation for providing excellent representation and client care whilst also keeping fee levels/structures transparent and at a reasonable and realistic level.” Susi has been recognised in previous editions of Chambers and Partners for her “enthusiasm and straightforward attitude”.

Susi is a qualified Resolution Accredited Specialist in the areas of complex financial remedies and cohabitation (unmarried) disputes. Resolution is the largest membership organisation for family justice professionals in England and Wales and the Specialist Accreditation Scheme recognises members who demonstrate excellence in the practice of family law and in their specific areas of expertise.

Susi is a trained mediator and collaborative lawyer which means that she can offer her clients an alternative method of dispute resolution from the traditional adversarial approach. Mediation is a cost effective and family focused way of assisting couples to end their relationship and plan for their family’s future. Collaborative law provides a means of achieving family led solutions in a non-confrontational way by agreement and discussion in client/lawyer meetings with the aim of avoiding court proceedings.

Experience and recent work

Susi’s experience and expertise lies in the resolution of financial disputes between married and unmarried couples and on children matters. Susi’s preference is to resolve these disputes in either a mediation or collaborative setting.

In so far as financial matters are concerned, Susi is fully aware that the worry associated with the financial division can be more stressful than the separation itself. Susi will assist in achieving a fair division of the matrimonial home and assets through a process of firm and fair negotiation on her clients’ behalf.

When it comes to children matters, Susi advises on issues relating to the arrangements for where children will live and how often they will spend time with their other parent post separation, as well as removal from jurisdiction cases. Susi understands that when couples are separating from each other, both parties will continue to be parents to their children. Susi actively assists parents to focus on their children’s well-being; whether this is through negotiation, collaboration, mediation or through the Court process.

Susi also regularly advises clients in respect of pre and post marital agreements as well as cohabitation or ‘living together’ agreements.


  • Resolution
  • Kent Resolution Committee Member
  • Resolution Cohabitation Committee

Client testimonials

  • Susi was highly professional, approachable and empathetic to my situation, the advice she gave was superb and she was quick to reply and advise at all times.
  • Susi Gillespie from Thomas Mansfield solicitors was incredible. Through no fault of my own, my wife and I were pushed into family law territory that we were very unfamiliar and uncomfortable with. Susi explained the legalities of my situation to me, how what I was being asked to do was unfair, and had my back the entire time. She fought in my corner and the end result was exactly what my wife and I wanted. Susi was 100% on my team from start to finish. Extremely professional and highly recommended.

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