Is it possible to save the form and continue later?

We have several managers who start the forms and then need to save them to complete later, is this a possibility?

Yes, you can either use the save and continue feature: http://www.jotform.com/features/save-and-continue/ or the autofill option: http://www.jotform.com/help/227-How-to-Enable-Auto-Fill-Feature 

The main difference between them is that the autofill option requires the form to be completed using the same device/browser and the save and continue feature allows the form to be completed using different devices.