My husband made a Will ,he did not have it notarized,is this Will still legal and binding without the notary seal?

Every state is different so it's hard to say. In California the will might be valid regardless of the notary. In fact, notarizing a will does nothing in California. Here you need two witnesses to sign the will unless it is a handwritten will (written in the decedent's writing) in which case no witnesses are needed. Additionally, there are some instances where other documents can be construed to be wills. I would definitely find a PA probate and estate lawyer to help you out. Good luck. -John