The transferee of a negotiable tangible document of title has a specifically enforceable right to have its transferor supply any necessary indorsement, but the transfer becomes a negotiation only as of the time the indorsement is supplied.
Structure Delaware Code
Part 5. Warehouse Receipts and Bills of Lading: Negotiation and Transfer
§ 7-501. Form of negotiation and requirements of due negotiation.
§ 7-502. Rights acquired by due negotiation.
§ 7-503. Document of title to goods defeated in certain cases.
§ 7-504. Rights acquired in absence of due negotiation; effect of diversion; stoppage of delivery.
§ 7-505. Indorser not guarantor for other parties.
§ 7-506. Delivery without indorsement: right to compel indorsement.
§ 7-507. Warranties on negotiation or delivery of document of title.
§ 7-508. Warranties of collecting bank as to documents of title.