Sue O'Brien


Telephone: 07887 700710

Email Sue

"This was mediation at its very best. 10/10"

Senior junior counsel

Professional Background

Sue spent her early career in the City and in Paris (with Holman, Fenwick and Willan, and Slaughter and May) and subsequently became Head of Dispute Resolution at a major regional firm.

Her practice as a solicitor focused on property, professional liability, commercial and probate disputes.

Sue was accredited as a mediator by ADR in 2008 and has been mediating full time since 2016. Sue is a Fellow of the Civil Mediation Council and a member of the PLA and PNLA.

Mediation Experience

Sue’s practice includes disputes relating to:

Land and Property

  • Sale and purchase of land and related finance agreements and joint ventures
  • Conditional contracts
  • Covenants
  • Overage disputes
  • Landlord and tenant issues, including service charges, management company issues, dilapidations
  • Possession, trespass and damage to property
  • Boundaries and easements and other disputes between neighbours
  • Co-ownership disputes

Professional liability and insurance

  • Property and private client related claims, including claims against solicitors, surveyors, valuers, architects.
  • Policy and coverage issues

Probate and inheritance disputes

  • Wills and probate
  • Inheritance Act claims 


  • Business disputes
  • Shareholder disputes

Other Experience

Other experience section

Mediation Style

Sue combines a keen analytical intellect and sound legal knowledge with approachability and informality. She brings optimism and energy to her mediations and is often commended for her commonsense approach to problems.

Her success as a mediator is underpinned by her excellent grasp of legal and strategic issues and her good head for business. She rolls her sleeves up and works hard for parties, achieving results in seemingly intractable situations. As a disputes solicitor of many years’ experience, Sue is just as happy working with rooms full of lawyers as with unrepresented parties.


Formerly a leading disputes solicitor, Sue trained as a mediator with the ADR Group and was accredited in 2008. She is a Fellow of the Civil Mediation Council. She is also a member of the Property Litigation Association / RICS Boundary Disputes Panel.


Sue loves the great outdoors and particularly enjoys walking, horse riding, cycling, kayaking and skiing with friends and family, as well as more sedentary pursuits such as theatre and opera, exhibitions, good books and good food. She has been quick to capitalise on the many upsides of her children becoming independent, managing to fit in a lot of interesting travel in recent years.

Sue lives in Oxfordshire and mediates throughout the UK.

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