My problem involves my parents, who are fairly wealthy and in poor mental and physical condition, and a sibling who created a new trust in place of their will. My parents had a will that put all of their assets into investments that would eventually go to their grandchildren, who are children of myself and my sister. Unfortunately, this year my parents both had a stroke and are not in good physical or mental condition. My sister saw a copy of the will, became furious, and then had a lawyer invalidate their will and create a new trust putting her in charge of all of their assets and has stopped communicating with me and referred me to an attorney. I assume she had them sign it but they aren't aware of it and do not remember. Her reasoning is that since she was the executor of their original will she can do whatever she wants with their assets. I have no idea what the wording of the trust is but since she won't show me I can guess. I need to address this situation right away but do not know where to start. I live in Missouri. If anyone can offer any advice I would appreciate it. Thank you.