MSB Solicitors

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Jonathan Alderton

Jonathan Alderton is a Senior Associate Solicitor with a background in Civil and Commercial Litigation. He also has extensive experience in corporate and commercial law, including drafting commercial contracts and handling partnership and shareholder disputes. His core competencies include drafting, negotiation and dispute resolution. Jonathan has successfully resolved a number of complex and high-value disputes involving new points of law.

Susan Alexander

Senior Associate

Managing Partner

Hayley Catherall

Mark joined MSB as a Partner in 2010. Having qualified as a Solicitor in 1994, he successfully practiced in a large corporate law firm before founding his own commercial firm. Mark heads a team of 18 and supervises MSB’s business team, comprising of corporate and commercial litigation, construction and employment teams. With 30 years of legal experience in advising businesses and individuals in all non-contentious and contentious commercial issues, Mark has a strong reputation in resolving disputes and delivering effective commercial solutions for his clients. Over the years, he has represented a significant number of large commercial businesses, SMEs, directors of companies, those seeking to acquire a business, shareholders and individuals. Mark advises on acquisitions and sales of business, Commercial/IPR contracts, business disputes, IPR disputes, construction contracts and adjudications, breaches of contract, Professional Negligence, Employment and Mediation. He has represented a significant number of organisations in the manufacturing, pharmaceutical, housing, construction and professional sector. Mark is proud to work for a Tier 1 Legal 500 Firm and in a Legal 500 ranked department alongside three of his colleagues.

Senior Associate

John McCreanney

John began his career at MSB in 2008. John studied law part time with CILEX (The Chartered Institute of Legal Executives) and qualified as a Fellow of CILEX in 2018. Since then, John has progressed through the ranks and was promoted to Partner in September 2025. John is proud to work for a Tier 1 Legal 500 Firm and in a Legal 500 ranked department alongside three of his colleagues.

Head of Family Partner Solicitor

Senior Associate

David Tarttelin

David Tarttelin began his career at MSB as a Paralegal in 2016 before commencing his training and qualifying in 2020. Since then, David has gone from strength to strength and was promoted to Senior Associate in 2024. David is based in the Commercial Litigation Department and focuses on insolvency, property and finance disputes. David regularly receives instructions from insolvency practitioners, secured lenders, office holders and companies from varying sectors. He has a focus on securing the right result for his clients in the swiftest and most cost-efficient manner possible, whilst being able to navigate the most complex and difficult of circumstances. David is proud to work for a Tier 1 Legal 500 Firm and in a Legal 500 ranked department alongside three of his colleagues.