DEAR ABBY: This letter is for women who have stepchildren or are considering marriage to a man with children. My second marriage of 20 years is in limbo with no closure. My three adult stepchildren took my husband away from our home two years ago. He was having some cognitive dementia, but we were doing well in our home. After a fall, everything came apart. To make a long story short, I was naive about legal issues and discovered he had named his children as powers of attorney with no plans for me. I have not had a visit or phone ...