Can I create a form where its data can be saved and then updated over time?

I am new to JotForm and have already created a form for data collection.  However, I would like to see if I can create a form for regular use throughout a real estate transaction.  I do not collect all of the data at once, though.  Is there a way to collect some of the data at one time, save it on the form, and then enter other data on the form at a later time - without losing the data I already created?  An on-going “transaction record” of sorts.  

Thank you!

Yes, it's possible to allow the users to enter information and continue later on to complete  the submission, there are  two methods, please check them on the following links: 

https://www.jotform.com/help/97-How-to-Save-Forms-and-Continue-Later

https://www.jotform.com/help/227-How-to-Enable-Auto-Fill-on-Forms

You may also allow them  to submit the form and allow them to edit it on a later date, this guide will help you doing so: https://www.jotform.com/help/40-How-to-Let-Users-Update-Their-Form-Submissions-at-a-Later-Date 

I hope this helps.