Scottish Law Questions? Ask a Scots Lawyer
My starting point is that you would appear to be out of time with regard to challenging the inheritance, but you do state that your mother was gifted 25% of the business and she seems no longer to have that share. This is something which you are entitled to have investigated - it would not be necessarily correct that she had or has no share - I would be minded to get a solicitor to write to the brother and seek clarification from him on the point of ownership. Happy to discuss. Pleases rate positively.
I hope that helps - can you please rate positively - thanks
Was the business owned by your grandparents a Scottish partnership between them or a limited company?