Allan studied at Oxford University and qualified as a solicitor in 1995. Specialising in Commercial Property, Allan particularly enjoys development work and is described as having an “excellent reputation” for such by the Legal 500.

Allan joined the Oglethorpe Sturton & Gillibrand LLP partnership in June 2019 following more than 20 years at two other local firms including heading up the Commercial Property department.

Allan is a keen runner enjoys training at Lancaster & Morecambe Athletics Club participating in and volunteering at parkrun and enjoys spending time with his family, walking and wildlife watching.

Allan Sumner


Commercial Property


  • All aspects of Commercial and Agricultural Property including sales, purchases, leases, options , promotion agreements and refinancing;
  • Property development particularly residential;
  • Landlord and Tenant;
  • Experienced in dealing with planning obligations (S106 agreements)


  • Oxford University
  • Chester Law School
  • September 1995 – Admitted to the Roll of Solicitors for England and Wales