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Sinead Hayes



I am a solicitor based in the Sheffield office. I undertook my training contract at Irwin Mitchell and qualified into the Medical Negligence team in September 2013.

I manage my own caseload and also assist Sarah Rowland and Anna Stacey on a wide range of cases, such as: birth injury claims, including those involving still births and cerebral palsy injuries; fatal claims; delay in diagnosis of cancer; mental health claims and cases of surgical negligence. 

I act exclusively for Claimants against NHS Trusts, GPs and other healthcare professionals. I have experience of dealing with a wide range of cases including negligent surgery, failures to diagnose and treat, injuries caused to mother and baby during birth, amputations and spinal injuries.

I have a particular interest in cases where suicide and injuries arising from attempted suicide could have been avoided with appropriate care. I act for families whose loved one has died as a result of medical negligence and help families through the inquest process at the Coroner’s Court. I am also a Solicitor Advocate having passed the Higher Rights of Audience Qualification, which gives me the same rights as a barrister in court.

Charity and community work is also very important to me. I am a Trustee at Sheffield Mind, a charity that offers a range of services and support to people who have suffered from a mental health problem, enabling them to lead healthy and fulfilling lives. Being a Trustee enables me to play a part in maximising the quality of service that the charity provides, making sure service-users have the support, advice, guidance and skills to improve their quality of life.

I'm equally passionate about fundraising work. In 2012, I slept outside Sheffield Cathedral to raise money for the Archer Project, a charity that supports those affected by homelessness. Since joining Irwin Mitchell I've been involved in a number of fundraising events, including a recent fundraising walk for Macmillan Cancer Support and many cake sales in aid of Macmillan Cancer Support and Rotherham Hospice. I have also coordinated a large shoe collection for children living in orphanages in Malawi and Sri Lanka. At Christmas, I enjoy assisting with Irwin Mitchell's annual pantomime trip, in which a number of families enjoy a trip to our local theatre. 

I take an active role in supervising work placement students that come to the firm to gain work experience; I've also lectured at Sheffield Hallam University to students who are interested in law.

Client Testimonials

“We are still very grateful to you and think of you very fondly – you are a credit to your profession and your organisation."

“We would like to thank you all very much indeed for all your hard work over the past 5 years. It was your firm’s foresight and determination to proceed which brought about this outcome, and for that we are extremely grateful."

Notable Cases

  • Successfully secured a £132,000 settlement for an adult who had suffered from a severe pressure sore which led to a permanent chronic pain syndrome. This significantly impacted on the client’s daily lifestyle, and they struggled to return to their previous employment. 
  • Heavily involved in a case where the individual had suffered from an Erb’s Palsy injury due to a traumatic birth. This led to permanent damage and limited function in the arm and shoulder. We received an admission of liability from the Defendant NHS Trust and an award of £575,000 for the client.
  • Successfully secured a £115,000 settlement at a mediation for our client. The case involved a delay in diagnosing a heart condition which sadly wasn’t picked up until after the individual's death. The NHS Trust admitted liability and we were able to progress to mediation to reach a resolution for the family involved.
  • Heavily involved in a case in which our client had suffered from a spinal cord injury, leading to paraplegia. The case settled for a lump sum award of £1.7m and annual periodical payments. We also secured a Provisional Damages Order, entitling our client to return to Court at a later date in the event of a serious deterioration in her condition.

Read My Comments On The Latest News

  • 20/10/2017
    Parents' Lives ‘Shattered’ After Loss of Six-Day-Old Son Who Died After Suffering Brain Damage During Childbirth

    “Roman’s death has left a huge hole in the lives of Carl, Kirsty, and the wider family. “While nothing can change what has happened to Roman, we hope the inquest into his death will shed some light on the standard of care he received. “It is incredibly important that if anything could have been done to prevent Roman’s death, those involved in his care learn from it so that no one else suffers as he did and that no parent suffers the same loss as Carl and Kirsty continue to feel.”

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  • 01/08/2017
    Sheffield Law Firm Show PRIME Commitment To Making The Legal Profession More Inclusive

    “The work experience scheme we offer through PRIME is really important for young people looking to get into law, as in the past it was very much a case of ‘who you know’ in terms of getting good quality work experience in the legal sector. “No matter what background a person comes from, all students should be entitled to get experience of their chosen career, which is why Irwin Mitchell takes pride at being part of the PRIME initiative. “It means that in the future, the mix of legal professionals will become more inclusive and diverse, which ultimately means that clients will have a greater choice of lawyers to meet their needs and fight on their behalf.”

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  • 06/01/2017
    Law Firm Sponsors Legal Prizes at College Awards Ceremony

    “It’s been great coming back to my old college and seeing the enthusiasm the students hold for their studies. I thought the ceremony was extremely rewarding and I felt very honoured to have attended on behalf of Irwin Mitchell. It is great working with TRC, especially being able to support and reward those hardworking students who have clearly excelled in their studies. “At Irwin Mitchell we pride ourselves on our commitment to working with local communities and supporting the students of TRC is something we are immensely proud of. “Both Terrell and William are thoroughly deserving of this award. The dedication they have shown to their legal studies, and their tenacity to succeed, are both traits that will enable them to get the very best results possible.”

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  • 20/10/2016
    Irwin Mitchell Hosts Rotherham Health Awareness Day

    “We are delighted to work with charities to be able to deliver this service to the community in Rotherham. It’s a day not just about raising awareness of healthy issues, but also a chance to promote a healthy lifestyle and wellbeing. “It can sometimes be difficult to come to terms with health problems and approach medical professionals for advice on general health and lifestyle. However this informal event will provide people with the opportunity to come along and learn more about what help and advice is available to them.”

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