almost two years ago DH got an inheritence from his mothers passing, wasnt much but he was uncomfortable getting it, we just wanted a few pieces of furniture and bits so we could tell DD that things in our house were nannas and we had things that reminded us of her. his sister on the other hand arranged a sale at the house to sell all her stuff and get as much money as possible. luckily she ****ed off back to the usa before the sale and i managed to take the things that were sentimental to DH out of the sale but half the stuff we thought we would keep got sold.
I think SIL felt it was HER stuff to have and HER money to claim.

ETA: i thought of a few more stories....a friend i used to know in the uk and her mother are waiting for the grandmother to die and have been waiting for about 20 years....and have told me this many many times....so they can get the big inheritance....she just turned 100!

My mums brother had to leave his country due to the political state there and had to start all over again with his family, its been really hard for them, my grandma made a comment that she was thinking about leaving all the inheritnace to him, and my mum got really angry about it! i dont know the full story but i think she is wrong to demand anything!!!!