If a testamentary insturment, as a purported will, is not signed, there is a good chance that it is not a will..
On the the hand, back to jurisdiction, the legal concepts of …dependant relative revocation, and that particular jurisdictional view of copies, documents and other indices of testamentary intent just have to be reconded with..
Again, "what if a will is not signed?".
Well, it might not be a will. Check with your local probate court..
(Once more: jurisdiction, jurisdiction, jurisdiction) ( Full Answer )