Payments to Consultant for work performed will be made on a monthly billing basis. Page 2. 61236.01300\40844037.1. 2. 3.When you hire a contractor, make sure you have a written contract. CONTRACT ADMINISTRATION. 2. 3. DESIGN-BUILDER. 2. 4. OWNER. 8. 5. TIME. 10. 6. If the SOW does not specify a payment schedule, Contractor will invoice NYU on a monthly basis. Mail in a Payment: Nancy C. Millan, Tax Collector P.O. Box 30012. CONTRACTOR to immediately terminate the contract with the subcontractor. Filling out this form and attaching it to your other required forms. An independent contract agreement helps to lay out work schedules, payment terms, and other essential details.