A Pennsylvania Last Will & Testament includes the following requirements:
The testator must be eighteen years old or older.
They must also be of ‘sound mind’.
The Will must be signed by the testator or by someone else in their name (provided it is done under the testator’s direction and in their presence).
Witnesses are not required by Pennsylvania state law.
Another requirement to make the Will valid is that it must be in written format.
Pennsylvania resident law does not limit the class of beneficiaries who may be included in a will.