Several years ago, in my second decade of practicing law, I learned a lot about estate disasters. My mother's aunt had substantial financial resources - resources saved and invested over the many decades of her life. She and her now-deceased husband had saved for old age - for security in their retirement years. She owned her own San Francisco home, had a secure pension and a large stock portfolio. Then, in her early 90s, she had a caregiver to assist her at a time of her decreased mobility, limited hearing, other sensory deficits and lost driving privileges.