377.   Liability of acceptor
The acceptor of a bill, by accepting it—
(1)   Engages that he or she will pay it according to the tenor or his or her acceptance.
-  (2)   Is precluded from denying to a holder in due course— -  (a)      the existence of the drawer, the genuineness of his or her signature, and his or her capacity and authority to draw the bill; 
 -  (b)      in the case of a bill payable to drawer's order, the then capacity of the drawer to indorse, but not the genuineness or validity of his or her indorsement; 
 -  (c)     in the case of a bill payable to the order of a third person, the existence of the payee and his or her then capacity to indorse, but not the genuineness or validity of his or her indorsement.