Every state has a Statute of Wills that establishes the requirements for making a valid will in that state. Some of the requirements are that the person making the will (testator) must be of legal age and of “sound mind”. The legal age is set by the state statute. Most wills are typed up but can also by handwritten. The will may also incorporate other documents by reference. Also, the will must be signed by the testator, preferably at the bottom of the will. This is to prevent fraud that could occur if someone added provisions to the will below the testator’s signature.