Duncan has extensive experience in advising on EU procurement and completion regulation compliance, best value requirements, alternative business models, outsourcing and state aid matters. 

He also advises on all types of major procurements, including hub, NPD/PPP/PFI and construction projects, public procurement law and public law compliance. He works for a wide range of public sector bodies, including local authorities, NHS Boards and schools.

Duncan is accredited by The Law Society of Scotland as a Specialist in Public Procurement Law and chairs the Law Society’s panel for the accreditation of solicitors as Public Procurement Law Specialists. 

He is also Chair of the Procurement Lawyers Association and a member of the Policy Committee of the Scottish Council for Development and Industry (SCDI).

  • "Helpful and responsive in providing advice."

    Chambers UK Guide to the Legal Profession
  • "Duncan is very approachable and knowledgeable."

    Chambers UK Guide to the Legal Profession
  • "I was very impressed with his client management and advice on strategy."

    Chambers UK Guide to the Legal Profession
  • "Duncan Osler is 'extremely well regarded' for his public law expertise."

    Chambers UK Guide to the Legal Profession
  • "Very informed."

    Chambers UK Guide to the Legal Profession
  • "A very considerate, thoughtful lawyer."

    Chambers UK Guide to the Legal Profession
  • "He is very approachable and is keen to think beyond the immediate to the bigger picture."

    Chambers UK Guide to the Legal Profession

Public Sector

Proudly described as the “top public sector firm in Scotland”, our team truly comprises leaders in their field, who not only understand the way government works but also how it thinks.

Latest updates from @MacRoberts

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