Citizens HELOC tomorrow help?

I have A Citizens HELOC tomorrow I got confused on one part the OPEN-END MASTER MORTGAGE FORM I have no idea if that need to be signed and notarized by me, for one its dated 2018 and second the state is Rhode island, its not for me to fill nor the borrowers, I just want to make sure if any of you done these before.

Did you ever find out? And also how big are the citizens Heloc’s. I’m getting a few offers for 50. I feel that a low. Are they like 30 pages or 150