From a student's perspective, I worked with my Mentor in earnest. It was my job to make every effort to get my Reviews done in a timely manner. I didn't want to keep my Mentor waiting to receive valuable input from her. I sometime found I had to wait from my Mentor to respond to my questions; which usually was a day or two!
So with that said, I would think that if NO response is made within 1 month
, drop the student. It wastes your time and the student. You can devote your energies towards other interested students. If they show no interest, why should you!
You might want to check with JR (at Eden Fantasys) for any guidelines or rules regarding this issue about the mentor program.