The required formalities differ depending on whether the will is an attested Will or a holographic Will:
- An attested will is the most common type of Last Will and Testament. To be valid, it must be in writing, signed by you, or another person at your direction and in your presence, and attested in your presence by at least two credible witnesses over the age of 14.
- A holographic will must be written completely in your own handwriting, and signed by you. There is no requirement that it be signed by any witnesses.
A person making a will has the option of adding a self-proving affidavit to the will. A self-proving affidavit is signed by the person making the will and two witnesses before a notary public. However, the absence of a self-proving affidavit does not invalidate the will.