Valid Will Requirements:
To create a valid will, the following requirements must be fulfilled:
The will must be written down.
The testator (person making the will) must sign the document and make it clear that they intended to create a will.
The will must follow one of three formats:
formal (signed by the testator in the presence of two witnesses),
holograph (entirely in the testator's own handwriting and signed by them), or
military (signed by a member of the Canadian Forces or other military services without any witnesses or formalities).
AB WSA s.14-17