Sample internship offer letter template. What are the key elements of an internship offer letter?Before you fill the blanks in on this job offer letter template, ensure you're complying with the law. Use an Internship Offer Letter form to offer an internship to a successful candidate. Dear (student's name): I am pleased to confirm your acceptance of an internship as (Title) in the (Department Name) with (Organization Name). If the employer requires you to complete an application form, please obtain the form from the Internship Coordinator. We're excited to have you join our team as an intern, and we believe this experience will be invaluable in shaping your career. This past summer, I conducted research as a legal intern in the litigation department at Sullivan. Fill out the complaint form, answering all of the questions completely. Applications missing any required materials or submitted after the deadline will not be considered complete and will not be included in the selection process.