Is there a way on the form that the offer will expire in 30 days?

is there a way on the form that the offer will expire in 30 days after they are first sent the form...or expires after their first use of the form? I also want them to be able to share the offer/form with others friends so not sure if this will be effected?

I think this may be achieved by adding two Date Picker fields and adding conditions to calculate the 30 day period. Though the link is exactly an expiring link but you may set a condition on the form based on the calculate date to hide the fields on the form. 

When the link is shared it is required to add the date field to populate on the form using URL parameters as shown below:

https://form.jotform.com/202328756665968?dateSent[month]=08&dateSent[day]=24&dateSent[year]=2020

The following conditions are added to the form to calculate the expiry date and hide the Submit button.

Please check the form to see if that works for you. You may clone the form to your account to see how the calculations are setup.

Thanks!