Which of the four main types of wills—simple, testamentary trust, joint, and living—you need depends on your circumstances. A last will and testament is one of the most important estate planning documents you can prepare. Not only does it allow you to direct where your property will go upon your death, but it can also provide you great peace of mind during your lifetime, knowing that your affairs will be taken care of in the way you want. Although state law varies regarding requirements, a will generally must be executed by someone over the age of majority who is of sound mind. This person is called the “testator.” The testator chooses an executor to handle the distribution of the estate. The testator must also sign and date the document, typically in front of one or more witnesses, and the will may also need to be notarized.Different types of wills serve different purposes, and the one you need depends on your specific circumstances.