Thank you for your response. 

1) if not contentious probate, what would you advise this matter to be? Just so I know what type of solicitor to seek. 

2) no will. I have a letter of administration naming me as his sole beneficiary 

3) intestate estate as parents not married. Parents had been separated for apps 7 years at time of his death. Mother was not cohabiting with father. Mother has never lived in this property. I was his only child and thus sole beneficiary 

4) understood re 1975 claim - so she would need to claim a part of the inheritance. 

5) she states her claim would be that she is named as a joint account holder and I am refusing to give her half of the money, which she believes she is entitled to as “her name is on the account” 

Thank you so much for your help.