Vendor Completion

English to German Law/Patents Law: Contract(s) Grundstückskaufvertrag

PAYMENT
The Purchaser will pay the Purchase Price as follows:
on the date of this Agreement the Purchaser shall pay the Deposit to the Purchaser’s Attorneys to hold as stakeholder on behalf of the parties, which shall be released to the *Vendor Completion* or to either party as otherwise provided in this Agreement; and
at Completion the Balance of the Purchase Price shall be paid to the Vendor.

Kann es sein, dass hier ein "upon" o. Ä. dazwischen fehlt?

TIA