In most states, a valid will requires the following:
1. Any individual 18 years of age or older and is of sound mind may make a will.
2. The will must be in writing (printed or typed).
3. The testator must sign and date the will.
4. Two witnesses, 18 years of age or over, that have no interest in the will, must sign the will.
Although you don’t need to notarize the will to make it valid, you can make the probate process quicker by adding a self-proving affidavit.