Full bio

Practice Area / Expertise


Examples of recent cases include:

  • Acting for the seller of a multi-million pound property where the buyer failed to complete and recovering damages;
  • Acting for a management company in litigation against a long leasehold tenant for breach of flooring covenant;
  • Advising a commercial landlord of a large British Home Stores shop upon the administration and eventual collapse of the BHS Group


Construction Dispute Resolution

Through my construction practice, I regularly receive instructions to act in disputes on behalf of developers, contractors, sub-contractors and construction professionals. I provide expert legal advice on claims for defective workmanship and design, disputes relating to payment, delay claims and other breaches of contract.

I am also highly experienced in taking cases to mediation, adjudication and through the Technology and Construction Court.

Examples of recent cases include:

  • Acting for a developer of a 55-unit residential development in Battersea against engineers, regarding a failure to position the building within the boundaries of the site.
  • Advising a subcontractor in relation to the withholding of £300,000 of payments and allegations of delay on a London hotel development.
  • Advising a contractor in relation to the enforceability of an adjudication award where the validity of the appointment of the adjudicator was disputed

Commercial Dispute Resolution

I have experience in dealing with commercial and contractual disputes across a range of fields including: disputes over construction and rectification of contracts, issues arising out of insurance contracts and professional negligence claims.

Examples of recent cases include:

  • Acting for the directors of a company defending a bank’s claim for rectification of personal guarantees which would increase personal liability tenfold
  • Acting for a company and its directors in a claim for unfair prejudice by a minority shareholder involving complex accounting and company valuation issues
  • Acting for a petitioning creditor and subsequently the substituted petitioning creditor in long running bankruptcy proceedings arising from a failure to pay rent

Before joining Harold Benjamin, I was a partner and head of litigation at a medium size practice based in Shropshire.

Experience Highlights

  • French and History Degree, Royal Holloway, University London
  • Law Conversion Law & Law Finals, Nottingham Trent University
  • Jon Mahony qualified as a Solicitor in 1986.

Key Transactions / Representative Matters

Recent case studies