<p>I just have a few questions about letters of rec. Since it is online now, we do not have to give them any cover sheets or anything like that right? Also, what's the limit of teachers you can invite online to do teacher evaluation? And lastly, I have a teacher I want to do the evaluation who was my math teacher last year; however, now he is retired. When I write his name in the box on the common app it says error. Can you get retired teachers to do the teacher eval?</p>