Paul is a partner in our London office who is a professional liability specialist. He qualified in England and Wales in 1998.

Paul specialises in the defence of professionals, particularly solicitors, surveyors, IT, financial and insurance industry professionals. With over 20 years’ experience, Paul frequently handles complex claims often involving multiple parties.

He also advises insurers in relation to coverage issues arising under professional liability and financial lines (including D&O) policies and multiple other lines of insurance such as personal accident and ATE. Paul is increasingly asked to provide insurers with advice concerning their broker relationships particularly under delegated authority arrangements.

Paul is a member of the British Insurance Law Association (BILA), and ranked as a leading practitioner in both The Legal 500 UK and Chambers UK legal directories.

Qualification

  • Qualified in England and Wales in 1998.

The arrival of the 'amazing' Paul Castellani from RPC has significantly increased the firm’s offering with regards to claims against solicitors.

The Legal 500 UK 2021

Market recognition

  • Leading Individual and recommended lawyer for 'Professional negligence (London)'
    "Paul Castellani is skilled in defending professionals, including solicitors, surveyors, IT, financial and insurance industry professionals."
    The Legal 500 UK 2022
  • Notable practitioner (Band 1) for 'Professional Negligence: Financial (London)'
    "He is an excellent lawyers' liability practitioner." "He is a terrific lawyer."
    Chambers UK 2021
  • Notable practitioner (Band 1) for 'Professional Negligence: Legal (London)'
    Chambers UK 2021
  • Notable practitioner (Band 1) for 'Professional Negligence: Technology & Construction (London)'
    Chambers UK 2021
  • Notable practitioner (Band 1) for 'Professional Negligence: Insurance (London)'
    Chambers UK 2021
  • Leading Individual and recommended lawyer for 'Professional negligence (London)'
    "The arrival of the 'amazing' Paul Castellani from RPC has significantly increased the firm’s offering with regards to claims against solicitors."
    The Legal 500 UK 2021
  • Notable practitioner for 'Professional Negligence: Financial (London)'
    One source reveals: "He has got us out of so many sticky situations. He's got a brilliant mind and always finds solutions."
    Chambers UK 2020
  • Notable practitioner for 'Professional Negligence: Insurance (London)'
    Chambers UK 2020
  • Notable practitioner for 'Professional Negligence: Legal (London)'
    Chambers UK 2020
  • Notable practitioner for 'Professional Negligence: Technology & Construction (London)'
    Chambers UK 2020
  • Leading Individual and Recommended Lawyer for 'Professional negligence (London)'
    The Legal 500 UK 2019/20
  • "Paul Castellani is highly regarded for his work in the professional negligence sphere. He has a broad practice regularly advising brokers, solicitors and surveyors.”
    Chambers UK 2019
  • "Paul Castellani ‘has a really strong reputation on the coverage side’."
    Chambers UK 2018

Work highlights

  • Challinor v Bellis [2015] – acting for the successful surveyor/investment manager in a claim alleging misrepresentation and breach of a Quistclose trust concerning the financing for the purchase of Fairoaks Airport.
  • Balogun v Boyes Sutton & Perry [2017] – acting for the successful solicitor at first instance and appeal in a “duty to warn” case concerning the purchase of a commercial lease. 
  • Rahim v Arch [2016] – acting for Arch in the successful defence of a challenge to its declinature of coverage to a solicitor on the grounds of dishonesty.
  • EFFORT v Mengiste [2017] - acting for the solicitor at first instance and appeal in the defence of a wasted costs application concerning the manner in which an expert was instructed to provide evidence at court. The proceedings included a successful judicial recusal application.
  • Wellesley v Withers [2015] - acting for the solicitor at first instance and appeal in the defence of a claim concerning the drafting of a shareholders’ agreement. Complex issues of foreseeability of loss based on contractual and tortious tests.
  • Paul is currently representing many large firms of solicitors in claims valued at up to £50 million. He is also acting for many insurance brokers facing claims generated by the recent market hardening in a wide variety of insurance sectors.
Market recognition
  • Uk Leading Individual 2022

    Leading Individual

    The Legal 500 UK 2022

  • Uk Recommended Lawyer 2022

    Recommended Lawyer

    The Legal 500 UK 2022

  • Legal-500-UK-2021-leading-individual.png

    Leading Individual

    The Legal 500 UK 2021

  • Legal-500-UK-2021-recommended-lawyer.png

    Recommended Lawyer

    The Legal 500 UK 2021

  • Legal-500_UK_Leading-individual.png

    Leading Individual

    The Legal 500 UK 2020

  • Legal-500_UK_Recommended-lawyer.png

    Recommended Lawyer

    The Legal 500 UK 2020