In Tennessee, anyone over the age of 18 can execute a will, as long as they are of sound mind. This means the person must understand the consequences of their actions, and the person should generally have an understanding of their assets and potential heirs. The person executing the will is known as the “testator”. The will must be witnessed by two people, who will watch the Testator sign his or her name to the will, and the witnesses must sign the Testator’s presence and in the presence of each other. It is not a good idea to have someone act as a witness if he or she benefits from the will.