Sheana Campbell
Sheana Campbell practices mainly in commercial law.
Prior to calling, Sheana was a litigation solicitor for 13 years. She trained and qualified into a large commercial firm before moving to a boutique firm in 2012, where she subsequently became a director. She obtained extended rights of audience in the civil courts in 2014.
Sheana has significant experience of a broad range of commercial disputes, especially those arising out of insolvency situations. She has been regularly instructed in disputes involving contractual, partnership or company related issues. She also has experience in property disputes.
Sheana’s personal insolvency practice was recommended in the 2022 Legal 500. She has been a member of R3’s Scottish Technical Committee since 2018 and the Lexis Nexis Scottish Restructuring and Insolvency Expert Panel since 2019.
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Katharine Muir
Katharine Muir called to the Bar in 2022 after 6 years as a solicitor in private practice. She has a varied civil practice which includes professional regulation, clinical negligence, product liability, judicial review, defamation, construction litigation and contractual disputes. She appears regularly in the Sheriff Courts and Court of Session and has been instructed in group proceedings.
Katharine has a particular interest in product liability. She has worked on some of the most high-profile product liability cases in Scotland as solicitor and since coming to the Bar. She has also advised manufacturers on product compliance and safety, labelling and advertising.
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Ampersand Advocates welcomes Top Rankings success in latest Chambers and Partners UK Bar Guide 2022
Ampersand has once again received top tier rankings across a number of areas of practice in the latest published guide to the legal profession, Chambers and Partners UK Bar Guide 2022.
Ampersand received 68 listings across 17 areas of practice, ranking as top tier (band 1) in Clinical Negligence and Planning & Environmental Law as a Set, and band 2 in Administrative & Public law, Civil Liberties & Human Rights, Commercial Dispute Resolution, Personal Injury, Professional Negligence, Real Estate Litigation and Restructuring/Insolvency as a Set. 5 members are noted as “star individuals”. There is wide practice for the clerking team and client service too.
Noted as a Band 1 set for Clinical Negligence, “Ampersand Advocates retains its reputation as a market-leading stable for clinical negligence matters. Its advocates continue to provide expert legal advice and representation to both pursuers and defenders in a wide range of disputes, including claims relating to birth and catastrophic brain and spinal injuries. Members are well versed in cases arising from alleged failures in diagnosis and surgical errors, and regularly appear at fatal accident inquiries. The stable also houses considerable expertise in multiparty actions stemming from the use of medical equipment, and several of its advocates have recently been involved in the Scottish Mesh Litigation, a class action in which over 500 claims were brought against the NHS in connection with allegedly defective vaginal mesh. Our rankings include 2 “Star Individuals”, Maria Maguire QC and David Stephenson QC, with 10 further silks and 7 juniors also ranked – Simon Bowie QC, Jamie Dawson QC, Simon Di Rollo QC, Una Doherty QC, Lisa Henderson QC, Vinit Khurana QC, Archie MacSporran QC, Geoffrey Mitchell QC, Graham Primrose QC, Lauren Sutherland QC, Fiona Drysdale, Mark Fitzpatrick, James McConnell, Paul Reid and Phil Stuart.
Ampersand’s new Band 1 listing in Planning & Environment states “Ampersand is a leading stable with a strong offering of advocates in both the junior and senior ranks.” and “Ampersand Advocates is well regarded for the complex planning and environmental work undertaken by its advocates. Members of the stable regularly act in judicial reviews and challenges to planning permissions and frequently act on behalf of developers, objectors, public sector bodies and energy companies. Members are regularly engaged in high-profile matters, including those relating to large renewable energy projects. Rankings include Malcolm Thomson QC as “Star Individual”, Marcus McKay QC, Ailsa Wilson QC and new silk Laura-Anne van der Westhuizen QC.
Band 2 listings include Administrative & Public Law where Ampersand is praised “houses highly praised practitioners who are skilled at acting in public law cases involving significant constitutional and human rights issues. They frequently appear before the highest courts in the UK and the EU.” The rankings include “Star Individual” Aidan O’Neill QC, along with Douglas Ross QC, Laura-Anne van der Westhuizen QC, Paul Reid and Usman Tariq.
In Civil Liberties & Human Rights Ampersand is noted as a “highly regarded civil liberties and human rights stable, known for representing both private individuals and public bodies in significant proceedings. Practitioners at Ampersand are regularly instructed by the government and the Equality and Human Rights Commission.” The rankings include Aidan O’Neill QC, Douglas Ross QC and Usman Tariq.
In Commercial Dispute Resolution Chambers state Ampersand is “well renowned for its consistent involvement in high-profile commercial disputes. The stable offers a large team comprising highly rated advocates at the senior and junior level. The advocates are instructed on behalf of corporations and financial institutions and are involved in a variety of related areas of practice including intellectual property and insolvency.” The rankings include Robert Howie QC, Graeme Hawkes QC, Laura-Anne van der Westhuizen QC, Ross Anderson, Giles Reid, Paul Reid, Usman Tariq and Tim Young.
Within Personal Injury “Ampersand Advocates is a highly regarded stable for personal injury matters and houses a number of dedicated senior and junior advocates. Members act for both pursuers and defenders, including several major insurers, in the full range of claims, and offer considerable expertise in the handling of catastrophic injury cases arising from road traffic and workplace accidents. The team is also well regarded for its expertise in complex product liability and occupiers’ liability disputes and matters involving accidents abroad. The stable’s tenants are regularly called upon to appear in fatal accident inquiries, where they have experience of acting for government agencies, health boards and local authorities.” Rankings include “Star Individuals” Maria Maguire QC and Graham Primrose QC with others ranked Isla Davie QC, Simon Di Rollo QC, Lisa Henderson QC, Euan Mackenzie QC, Douglas Ross QC, Alan Cowan, Chris Marney, Jenny Nicholson, Louise Milligan.
A new Set ranking in Professional Negligence declares “Ampersand Advocates is recognised as a leading set for professional liability matters in Scotland. The advocates often advise and act in proceedings on behalf of and against a suite of professionals including solicitors, surveyors, architects and financial advisers.” The rankings include Chris Marney, Paul Reid and Usman Tariq.
In another new Set ranking area, Real Estate Litigation, it exclaims “Ampersand Advocates offers a strong bench of well-regarded advocates who are active across a broad range of real estate litigation topics. The set demonstrates strong expertise in areas of overlap between commercial and real estate disputes. Members are instructed at all levels from the Supreme Court down.” Rankings include Robert Howie QC, Laura-Anne van der Westhuizen QC, Ross Anderson, Giles Reid and Tim Young.
Within Restructuring/Insolvency “Ampersand Advocates is well regarded for its handling of a wide range of restructuring and insolvency matters. The stable’s advocates are frequently instructed to represent administrators, companies, banks and insolvency office holders in complex claims involving allegations of wrongful trading and breach of fiduciary duty, among other matters. Members have experience of appearing in both domestic and cross-border matters, and are regularly called upon to act for and advise their clients on both contentious and non-contentious insolvency cases.” Rankings include Robert Howie QC, Ross Anderson and Usman Tariq.
There are individual rankings in: Agriculture and Rural Affairs for Laura-Anne van der Westhuizen QC; Company for Tim Young; Employment for Aidan O’Neill QC; Immigration for Alan Dewar QC; Information Technology and Intellectual Property for Usman Tariq; Product Liability for Paul Reid; and Tax for Ross Anderson.
The Ampersand clerks receive wide praise across all areas of practice described as “fantastic and always very helpful… approachable and knowledgeable….Very efficient and pleasant.” The client service is also noted as “ahead of the curve in terms of its responsiveness and use of technology” and notes Ampersand “was the first Scottish stable to offer video conferencing.”
On the recent rankings, Practice Manager, Alan Moffat, said: “This is again wonderful recognition and praise for all of the excellent work our advocates and my team does on a continual basis. My thanks goes to everyone who took the time to provide Chambers with their views. We work in collaboration with the profession and it is pleasing to hear those that instruct our members recognise the value our members bring to the legal team. I am also proud of the excellent and hard work my team puts in daily and am pleased to see that appreciated too.”
The full rankings can be viewed on the Chambers and Partners website here.
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Mary Ellen Stewart
Mary Ellen Stewart called to the Bar in 2021, after training and qualifying with Brodies LLP, and latterly working there as a senior solicitor.
As a solicitor, Mary Ellen had a busy practice dealing with a broad range of commercial disputes. Her practice had a particular focus on commercial contracts, banking and finance, insolvency and professional liability litigation. When in private practice, Mary Ellen appeared in the Sheriff Courts and instructed Counsel in Court of Session cases.
Mary Ellen has a particular interest in professional liability and regulation. She also has an interest in maritime and shipping law, and is the Advocate member of the Law Society of Scotland’s Marine Law Sub-Committee. Mary Ellen is also a part-time tutor of Contract Law and Unjustified Enrichment at Edinburgh University.
Mary Ellen was appointed to the Advocate General’s panel of Nominated Presenting Officers to the Home Office in 2021.
Mary Ellen is fluent and fully literate in Scottish Gaelic and is well placed to undertake work involving consideration of documents in Gaelic.
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Mark Boni
Mark Boni called to the Bar in 2020, having qualified as a solicitor in 2014. Since 2022, Mark has been ranked by Legal 500 as a tier 2 leading junior in commercial disputes and since 2024 has been ranked as a tier 1 leading junior in private client and family disputes. In the UK Bar Guide 2025, Chamber & Partners identified him as an “up and coming” junior counsel in commercial dispute resolution as well as real estate litigation.
Mark has experience in a wide range of commercial and private law litigation, with a particular interest in contractual and property disputes, prescription, personal insolvency and private client litigation.
He regularly appears for pursuers and defenders at proofs, debates, procedural hearings, opposed motions and interim orders hearings.
Mark has experience, both as a solicitor and at the Bar, of litigating in the Sheriff Courts, Sheriff Appeal Court, Lands Tribunal, Court of Session (Outer and Inner Houses) as well as the UK Supreme Court. Mark also has experience in alternative dispute resolution, including arbitration and mediation.
Whilst devilling, Mark was a Lord Hope Scholar and was involved in a variety of complex and high value cases, including professional negligence claims and intellectual property actions.
Since 2012, Mark has tutored part-time at the University of Edinburgh. He presently tutors “Commercial Law” and “Contract and Unjustified Enrichment” and previously tutored “Public Law of the UK and Scotland” and “Public Law and Individual Rights”.
Mark wrote the reissue edition of “Prescription and Limitation” in the Stair Memorial Encyclopaedia (published 2023) and has rewritten the Scottish prescription and limitation online content for Lexis+.
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Euan Scott
Euan Scott called to the Bar in 2020 having worked in one of Scotland’s leading litigation firms.
He has a broad civil practice with a particular focus on medical and professional negligence, and commercial dispute resolution (with his experience concentrating on commercial contract disputes, property disputes, contentious construction and insurance).
He also has an interest in media law and insolvency issues and has extensive experience of public inquiries.
Euan was appointed as Standing Junior Counsel to the Scottish Government in 2022
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