When to Use Parallel vs. Sequential Signing
Quick Answer / Definition
Use parallel signing when multiple equal parties (such as joint tenants or board members) need to sign at their convenience, and use sequential signing when a contract requires customer execution before partner countersigning.
Choosing the correct routing workflow prevents commercial awkwardness and legal complications.
In professional services, sequential signing is standard: an accountant or agency sends an engagement letter, the client signs first, and the managing partner countersigns to execute the agreement.
In joint ventures or property tenancies with four flatmates, parallel signing is preferred so no single individual creates a bottleneck for the others.