Thank you for your question
My name is ***** ***** I am sorry for your losses
I shall do my best to help you
Any gift that was made to your sister will pass into her estate to be dealt with in accordance with her Will or the Intestacy rules
The Executors of your mother's Will will deal will this.
I hope that this is of assistance - please ask if you need further details
Yes it is matter of whether or not your sister lives longer than your mother - which she did.
So far as your sister's share is concerned the Executors need to deal with whoever is administering her Estate - which may well be her husband
I am sorry - only if your brother in law agrees can you have all the contents - you will need to negotiate this with him via the Executors.
Equally I am afraid you can have no control over what happens to the funds received by the Estate - they will have to be divided in accordance with the Intestacy Rules