Madeline Seibert

Madeline Seibert
Head of Medical Negligence

My Professional Background

I specialise in complex, high value medical negligence, fatal accident and preventable suicide cases. I am responsible for a wide range of cases, including surgical error, misdiagnosis and sub-standard nursing and midwifery care. I am particularly interested in claims involving injuries to mother or baby during pregnancy and labour. I also represent families at inquests.

I became a Partner at Attwaters Jameson Hill in 2009 and Head of Medical Negligence Dept in 2014. I am the Firm’s LEXCEL Senior Responsible Officer (SRO) and a Professional Trustee on a number of multi million pound Personal Injury Trusts.


Achievements / Accreditations

  • AvMA Clinical Negligence panel member
  • Law Society Clinical Negligence panel member
  • Recommended as a top tier ranking Medical Negligence Solicitor in Chambers & Partners 2017
  • Legal 500 recommended Medical Negligence lawyer
  • Ranked within Band 1 for Chambers and Partners 2017 with the following comments: “Head of department Madeline Seibert handles a wide range of complex clinical negligence claims, including matters arising due to negligent obstetric care. Sources name her ‘an absolute gem’ and commend her as ‘a very accurate and conscientious worker who is passionate about her clients’”.
  • Medical Negligence department ranked in Band 1 for Essex in Chambers and Partners 2017.
  • Described by the Legal 500 as an “effective litigator and good tactician” and by Chambers and Partners 2016 as “tough and uncompromising in terms of negotiating, but never forgetful of the human side”.
  • Lexcel Senior Responsible Officer
  • APIL Senior Litigator
  • Obtained 1.75-million-pound settlement for a brain injury case concerning a child, who was injured as a result of the mismanagement of his mother’s labour, where liability and causation were strongly contested.
  • £450,000 settlement for a young woman injured as a result of substandard surgery, causing spinal accessory nerve damage
  • £250,000 settlement for injury caused by negligently performed bladder surgery
  • Six-figure settlement for a delay in cancer diagnosis
  • Successful in the Court of Appeal regarding delay in diagnosis of meningitis
  • Specialist in multi-million pound complex neurological injury litigation
  • Recommended in Legal 500 2017 as heading an “enthusiastic team” and praised for “great judgment” and working “tirelessly for the client’s benefit”.


About me

I live in Broxbourne, Hertfordshire with my husband and two young children. I am a Trustee of Citizens Advice, Harlow, and am passionate about accessible justice for everyone. My interests include travel, reading psychological thriller novels, spiritual healing, meditation and trying to keep fit!


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