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Sonia Campbell, Partner, Dispute Resolution

Sonia Campbell


Personal Profile

Sonia is a Partner in the Dispute Resolution department and head of Mishcon de Reya's Insurance Disputes practice. She specialises in policyholder insurance coverage disputes, including matters concerning reinsurance and captives.

She also deals with all commercial disputes, often multi-jurisdictional and multi-party complex claims. She handles high-value commercial litigation and arbitration disputes, including breaches of contract, fiduciary duty, dishonesty claims, trust and shareholder disputes.

Sonia acts for policyholders in relation to disputes arising under D&O, W&I, property damage and business interruption (PDBI), credit risk, bankers' blanket bond, trade credit, cyber, employment practices, fidelity/crime, fiduciary/PTL and professional indemnity policies. She also advises on related global risk management and renewal issues.

The team's work is often reported in the press, most recently regarding involvement in the FCA Business Interruption Insurance test case relating to recovery of losses flowing from the COVID-19 pandemic from insurers. The team continues to be involved in test case litigation on insurance aggregation issues stemming from COVID-19 losses.

Sonia tends to represent FTSE 100 organisations and high net worth clients. Her clients come from a range of sectors including pharmaceutical/life sciences, financial services/private equity, betting and gaming, retail and consumer, real estate/construction. Many clients are  senior executives involved in regulatory investigations; in this respect Sonia is well-versed in dealing with the civil investigation aspects as well as related insurance matters.

Her matters often have a cross-border element and she has been involved in numerous insurance coverage disputes concerning life science/pharmaceutical mass tort proceedings in the US. She is experienced in assisting with deposition requests made in other jurisdictions where English legal and procedural issues come into play, as well as managing the interplay between foreign proceedings and the English courts. Sonia regularly works alongside lawyers in foreign jurisdictions as well as in a monitoring counsel role.

Sonia is experienced in LCIA, ICC, FIDIC and ad hoc arbitrations. In the insurance sector, Sonia has for many years acted only for policyholders against insurers, with a specialism in representing life science/pharmaceutical policyholders in Bermuda Form insurance disputes.

Sonia also has extensive experience of the reinsurance market and can act in disputes between cedants and their reinsurers.

Sonia handles matters where third party litigation funding (e.g. most recently the FCA test case) and/or after-the-event insurance cover is required. Sonia also has experience of dealing with litigation buy-out insurance.

Sonia is co-lead of the firm's EDI Race Equity Committee. She is also a member of the IBA, AIRMIC, BILA, Arbitral Women and the Women in Telecoms and Technology Group.

Sonia is also part of the MDR Solutions I team, a litigation finance venture offering greater access to funding for claimants.

Key Experience

  • Acting for Various Eateries in its 'test case' claim against Allianz Insurance plc.
  • Acting in multi-jurisdictional proceedings in connection with COVID-19 losses.
  • Advising on deposition issues relating to ongoing US proceedings.
  • Leading the claim for the Hospitality Insurance Group Action (HIGA) in the FCA Business Interruption Test Case proceedings arising out of the COVID-19 pandemic.
  • Advising major clients in the Real Estate sector on cover for COVID-19 business interruption claims under loss of rent/property policies.
  • Acting for German biotech company on a patent infringement insurance dispute.
  • Acting in connection with US plaintiff deposition requests relating to US metal on metal hip litigation brought against a global life science company.
  • Acting for Cheval Roc Residential Ltd and Bonne Nuit Cheval Ltd against Zurich Insurance plc on an insurance coverage dispute involving property damage and business interruption involving a major landslip in Jersey.
  • Advising on an insurance claim arising out of the expropriation of a client's art collection. Issues included challenging insurers' avoidance of the policy, a potential broker negligence claim and support of high value, complex, multi-jurisdictional litigation.
  • Advising global life science insured on cyber coverage issues.
  • Representing a corporate trustee in connection with an insurance coverage claim relating to claims and underlying litigation involving allegations of fraud/knowing receipt, breach of fiduciary duty/trust and misrepresentation.
  • Acting in connection with coverage issues concerning historic abuse allegations.
  • Advising a life science plc on a US$300m manufacturing-related PDBI claim relating to FDA issues.
  • Acting for William Hill on Prize Indemnity Insurance issues.
  • Acting for a UK listed bookmaker in relation to duty of care / gambling addiction allegations.
  • Acting for plc pharmaceutical company on a US$100m Bermuda Form PL dispute relating to alleged defective products.
  • Acting for a global life science company in a Bermuda Form arbitration concerning historic class action product liability claims emanating in various jurisdictions.
  • Acting for a global life science company in connection with US MDL proceedings involving sale of OTC and claims involving Additional Insureds.
  • Acting for a FTSE 100 company on employment practice liability claim issues.
  • Acting on D&O coverage issues for a plc linked to bribery allegations in China.
  • Acting for a FTSE 100 company on a professional negligence dispute involving brokers.
  • Acting for FTSE 100 company on ABAC related insurance coverage issues.
  • Acting for a former CEO in connection with D&O coverage issues and in connection with the parallel government investigation and independent inquiry.

Career History

Partner, Mishcon de Reya LLP
Partner, Addleshaw Goddard LLP
Legal Director, Addleshaw Goddard LLP
Associate, Addleshaw Goddard LLP
Senior Loss Adjuster, ASL International
Kent at Canterbury, LLB Hons 2:1

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