Dear Eric: My sister and I have never been close. My sister, I’ll call her Lydia, has been a pathological liar from the time she learned to speak. Our mom became terminally ill and was unable to stay by herself and was adamant that she would never be put long term in a nursing facility. She had the financial ability to pay for a caregiver to stay with her in her home. Mom’s grandson volunteered to stay with her. Because of her macular degeneration, Mom gave her grandson access to her financial information and added him as a signer. Long story short, the grandson embezzled more than $100,000.