Principles of Preserving Wealth The slideshow presentation that you would like to view is too large for your current screen resolution. Click here to view to view the slideshow at full resolution. Launch Presentation » Share | Related Content Estate Management 101 A will may be only one of the documents you need—and one factor to consider—when it comes to managing your estate. A Primer on Irrevocable Life Insurance Trusts Irrevocable life insurance trusts can be important tools that may accomplish a number of estate objectives. What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability.