To create an internship offer letter, include key details, next steps, legal terms, and close with a signature section. I obviously don't want to be in a situation where I would have to back out but does anyone have experience with accepting offers and backing out later?Internship period deadline for student applications staff review applications and set up interviews staff select candidate and send acceptance letter. UCS has resources and career coaches to help all students, first year through PhD, find internships that meet their needs. Download North Carolina Employment Acceptance Letter template, modify and send for signing using BoloForms Signature.