As a legal summer intern, your duties are to assist with research and clerical work at a law firm. You may work under attorneys or paralegals, study legal cases, draft memos, and provide other essential duties to the firm while you gain experience with the legal setting. The responsibilities of a summer intern at a law firm vary depending on where you are in your studies. Undergraduates seeking more experience and an understanding of the law may have fewer responsibilities than those who are already in law school.