Contracts and simple documents usually contain a clause that expressly allows the document to be executed in equivalents. Now each person signs a copy, scans it and emails it to the other. Each person keeps their own original or can agree to post an original signed copy. Or a signed original has been mailed to the other party, signed and returned to the other party. In short, contracts and documents can usually be signed against a counterparty. The absence of a specific counterparty clause should not affect the validity of an instrument where an instrument has been executed in return. However, such a clause may help to prevent another party from claiming that an agreement is not binding. They could argue that, in the absence of a counter-clause, they did not know that they would enter into a binding contract by signing an agreement that was not signed by the other parties. . . .