Step 1: Add approvers to your form to give them the ability to approve or deny submissions. They'll be notified of new approval requests via email.
Step 2: Set approver prioritizations. As different approvers complete their reviews, you'll receive their acceptance or denial in your email. The form will move in the order you set.
Step 3: Once everyone submits their feedback, you can look at their comments, make adjustments to your request, and resend for a final review.