The signatures required under § 4–603 of this subtitle shall be placed at the end of the will. If the will consists of more than one sheet, each sheet shall be numbered. If a will consists of more than one sheet, each sheet shall be signed by: The testator; or If the testator is unable to sign the testator’s name, a person signing at the direction of the testator; or If there is no person signing at the direction of the testator, the authorized person. The date of the will shall be: The date of the authorized person’s signature on the will; and Noted at the end of the will by the authorized person. The authorized person shall ask the testator whether the testator wishes to make a declaration concerning the safekeeping of the testator’s will. If the testator responds by an express request for the safekeeping of the will, the place where the testator intends to have the will kept shall be included in the certificate described under § 4–605 of this subtitle. A will executed in compliance with § 4–603 of this subtitle is not invalid solely because the will does not comply with this section.