Dear Mr. Premack: My father left a Will that gives one-third to my son Tom, one-third to my son Jeff, and one-third to my daughter Peggy. The problem is that Peggy died three years before my dad died. Does her part go to her son, or does it go to her brothers? – J.R. We are all legally empowered to identify our heirs and specify the portion of our estates they are to receive upon our deaths. Most people use the traditional Last Will and Testament to do so, but the same instru