You will be given a definition of a task first, then some input of the task.
Given a text, write a compressed version of it in a single sentence.

Once the staff was satisfied that the invoice reflected a legal, proper, valid, and accurate amount, the invoice was deemed ready for payment. The invoice amount, or an adjusted or modified amount, was prepared for payment on a specific form.
Output:
Once the staff was satisfied, the invoice was deemed ready for payment. The invoice amount was prepared for payment on a specific form.