How to show an email field conditionally and make it required

I need a place where people can opt in or out for e-statements. The hiccup is, I need there to be a drop down or something where if the persons says, yes i want e-statements, it requires them to insert their email.

Any suggestions?

Hi,

To accomplish this, you could use a conditionally shown, required, email field.  First add a radio button and an email field to your form.  Set them both to "Required" in their associated settings. Then, set the email field to be shown only when "Yes, I was e-statements" is selected:

http://www.jotform.com/help/57-Smart-Forms-Using-Conditional-Logic

Here is a quick test form I made to show you how it works:

http://form.jotformpro.com/form/50485104324952

Let us know if you have any further questions and we will be happy to help.