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.
Delivery without indorsement; right to compel indorsement
A.R.S. § 47-7506 — under Warehouse Receipts and Bills of Lading: Negotiation and Transfer.
A.R.S. § 47-7506