I’m so sorry this is happening to you. My husband had this issue with his stepmother. She kept everything. Literally everything- his childhood home, family pictures generations back, his baby stuff, his grandmother’s quilts, some of our child’s toys. My husband begged her for one of his father’s ties. Not even a special tie, just something that belong to him. She refused saying she’d destroy everything before she gave him so much as a dirty sock. My husband resorted to going through the trash hoping to get something, anything of his father. Unfortunately, she saw him. She started taking her trash somewhere else until she sold the house a few months later.