Actions and defenses based upon written instruments.
Section 103
SEC. 103. Actions and defenses based upon written instruments. — When an action is brought upon a written instrument and the complaint contains or has annexed a copy of such instrument, the genuineness and due execution of the instrument shall be deemed admitted, unless specifically denied under oath in the answer; and when the defense to an action, or a counterclaim stated in an answer, is founded upon a written instrument and the copy thereof is contained in or annexed to the answer, the genuineness and due execution of such instrument shall be deemed admitted, unless specifically denied under oath by the plaintiff in his pleadings.