Is there a way to have a required link on my jot form that needs to be read/completed before the jot form is submitted?

I have a couple of assessments that are required before submissions can be made.  I want to put those assessments on the form and only show the submit button once the assessments have been completed.

If I understood you correctly you users will click on the link on your form that will redirect them to some other page and you want to make sure that they have read or completed some task on that page before they can submit your form.

Unfortunately that is not possible, because there is no way to check on our end if user read or completed some task. 

As possible workaround you use terms and conditions widget and add text that you want to be read on your form. Terms and conditions widget is by default required, so your users will not be able to submit the form if they do not check terms and conditions check box. 

How to Add a Widget to your Form?

If I did not understood your question correctly, please explain in more details what you are trying to achieve and also provide us ID of the form you are working on. 

Hope this will help. Let us know if you need further assistance.