Hi @saeltorres1,
Welcome to the Auth0 Community!
You can add a Terms & Conditions link into the Universal Login using Forms for Actions. Forms is a visual editor that allows you to create customizable forms that can extend your identity flows with additional steps and business logic.
Here is a template that guides you to prompt custom policies (Terms & Conditions, Privacy Policy) on login and signup: Custom Policies Acceptance Template
Additionally, check this Knowledge solution that tackles the same issue: Add Terms and Conditions (or Terms of Service) to the Signup Screen
I hope this was helpful and please reach out if you have additional questions.
Thanks,
Tudor