Understand the what, when and why of the project and its due dates. This involves clear communication, and results in a realistic schedule that should satisfy the requirements of the client and your team’s ability to deliver it.
Due dates are often not set clearly. Be specific with time based language. Specify the date and time something is due. This will reduce misunderstandings on when things are due.
When submitting any document for review (such as a design, invoice for payment, report, etc.), specify the date a response is due (perhaps 10 business days). For contractual related items …