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 Share | Related Content When Do You Need a Will? When do you need a will? The answer is easy: Right Now. Yours, Mine and Ours: Estate Strategies for Second Marriages Second marriages are a trigger event to revisit any existing estate strategies. What Is My Life Expectancy? Estimate how many years you may need retirement assets or how long to provide income to a surviving spouse or children.