Recognition of Scottish Guardianship for sale of property in England

My husband and I have jointly owned a property in London since 1982 which was formerly our home.  He has been diagnosed with Frontotemporal dementia in Scotland and is now resident in a care home in Scotland.  I was awarded Guardianship by the Office of the Public Guardian in Scotland in November 2023.  My London solicitor advises that this may not be recognised in England and that I should apply for Guardianship in England which will add another 6+ months to the process of selling the property which I urgently need to sell.  Will HMLR accept the Certificate of Guardianship and associated documentation confirming his illness and incapacity to act?

Jane - very much something you should be relying on your legal rep to advise you on as this is more to do with the limits of any Scottish Guardianship.
You may find this information helpful as it refers to the limitations involved - FAQs (publicguardian-scotland.gov.uk)