Sue O’Brien

Professional background

Sue qualified as a solicitor in 1984. She 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 major regional firm, Pitmans LLP.

Sue was accredited as a mediator by ADR in 2008. Her mediation practice has now overtaken her former work as a solicitor in which she focussed largely on land, property and construction disputes. Sue also has extensive experience of professional liability disputes.

Mediation Experience

Sue’s practice includes disputes relating to:

  • Sale and purchase of land and property
  • Possession of land, trespass and damage to property
  • Boundaries and easements and other disputes between neighbours
  • Covenants
  • Overage agreements
  • Landlord and tenant issues, including service charges, management company issues, dilapidations
  • Conditional contracts
  • Professional liability actions involving surveyors, architects and solicitors
  • Property related finance disputes and joint ventures
  • Business and shareholder disputes
  • Inheritance disputes
  • Co-ownership disputes

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.

Some comments from clients

“Excellent mediator”
(Leading counsel)

“This was mediation at its very best. 10/10”
(Senior junior counsel).

“Sue O’Brien was highly commended by all parties at the mediation for her effective and intelligent engagement in the process and her ability to narrow the gap between the parties in very difficult circumstances. I will not hesitate to recommend her for future mediations”
(Partner in regional law firm)

“Sue was extremely helpful and her knowledge allowed her to cut through the issues and bring the parties to a settlement. I was extremely happy with her performance and would not hesitate to use her services again”.
(Regional law firm)

“Sue had a very relaxed style and put the clients at ease. She was pragmatic and commercial in her approach, communications clear at all times, very helpful.”
(Withy King LLP)

“It was a difficult case that may not have settled had we used another mediator. I would have no hesitation in recommending and using this mediator again.”
(Partner in regional law firm)

“I was really impressed with the the professionalism of Sue O’Brien during our recent mediation. Sue managed to keep the process on track in a firm but encouraging manner by focusing on finding an acceptable solution rather than going over our differences. I would definitely recommend Sue to anyone looking for mediation”.
(Private individual)

“Very impressed”.
(construction industry professional)

“I would like to thank you for helping me escape from Hell. I can’t tell you how light and happy I feel this morning. I’ve just noticed how beautiful the world is….it seems I had forgotten that!”
(Managing director of contracting company after resolving a long running construction dispute).


Sue trained with and was accredited by ADR Group in 2008. She is a member of the Law Society, the Chartered Institute of Arbitrators, the Country Landowners Association and the British Horse Society. She is a member of, and registered mediator, with the Civil Mediation Council.


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.

Contact Sue

Tel: 07887 700710

Email Sue

“This was mediation at its very best. 10/10”Counsel