My sister and I we're supposed to have an inheritance when my mother passed. She had over a quarter of a million dollars when she divorced my dad and

My mother passed and we had inheritance coming to my sister and I. She had over $250,000 25 years ago that she received from my father after they divorced. That money she said was to go solely for her children and grandchildren. She remarried and the terms of that marriage where that what was hers before the marriage was hers and what they built up between the marriage was theirs together so that everything she had obtained before the marriage would go to her children after her death. Mom n stepdad have been married for 25 years, my mother recently passed and after she died my step dad said that we have ot a dime coming to us. All the money was spent on taking care of my mother with her Alzheimer's. My step dad also told us a couple of months ago before my mom's passing not to ask for any money because it's all been used up and we have nothing coming to us which I find so hard to believe because I know that my mother had an inheritance for us, my sister and I and the grandkids.😱