<p>I think my teacher's recommendation forms and letter address Duke University. But, I am applying to Duke, UPenn, Cornell and about 10 other schools on commonapp. He already submitted the forms to commonapp, so they're sent to all of my chosen schools. Will this be okay?</p>
<p>you should probably make an alternative version of your common app and have your teacher edit and resend the rec. check the help section on common app to figure out how to do so.</p>