Whether your mother’s wishes are in a letter, or in a will, if you won’t let you see them and you don’t think he is honouring them, then you can’t beat him with a stick until he gives up and hands them over. Your only remedy is to take him to court to get an order for pre-election disclosure of whatever the document is.
You can also ask the court to award costs against him on the basis of his unreasonable behaviour.
You may find that a strongly worded letter from a solicitor threatening a court application and an application for costs, may focus the mind without actually the need to get to court.
Check your house insurance to see if you have legal expenses cover that would pay for the legal cost of taking this to court.
Can I clarify anything else for you?
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