Completing consent forms with client in session

I'm going to assume there's no way to do this, but I have had a few clients come in who are either tech-aversive or elderly and are having a hard time wanting to use the client portal. They prefer to schedule appointments through phone call, etc. 

I'm wondering if there's a way for me to pull up their consent forms on my end, go over them with the client in session, and then have them either click to sign on my computer or give verbal consent and I click to sign. This way I'm not asking them to pull up the portal on their phone when they arrive at the first session and haven't completed their consent / intake forms. 

I know how to add intake forms as assessments for completing in session, but I want a way to do this with consent forms that need to be signed by the client. 

Thanks!