Do you do forms with username and password so you can save / come back later before you submit?

No, those kind of forms will violate our terms of use, if you do it, your account will be suspended in no time.

I'm not sure if you understand my question.

I need to create a form that requires a lot of information. Because of this, people may not have all the information on hand to fill out the entire form and submit. 

I want people to be able to SAVE the information they have filled out so far, and are able to come back to finish the form at a later point. Therefore they will need to have some form of username/password option.

1. Does Jotform have an option for this?

2. What is this type of form called?

Thank you. 

There are two ways to accomplish this, read the guides below for more details:

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

https://www.jotform.com/help/40-How-to-Let-Users-Update-Their-Form-Submissions-at-a-Later-Date