We are will need a workflow software built that is very similar to a project managment system. The basics are client enters the details of the project and uploads files if any. The vendors (people performing the tasks) are notified of a pending project via email. They login and accept the project. Perform the duties of the project and upload files if required. Admin monitors and controls all from the backend, If you are interested in this send me a DM and include your email address and I will send you details. Thanks Joe