The Official Solicitor is part of the court’s system in England and Wales and acts on behalf of those who lack capacity to represent themselves in court proceedings.  In statutory will applications, the Court usually appoints the Official Solicitor to act for the incapacitated person as their ‘litigation friend’.
The Official Solicitor may ask for more information about the person and their circumstances.  The person making the application will work with the Official Solicitor to reach an agreed draft of the will, which is then approved by the Court.