Law degrees are only available at the graduate level.
Law schools do not specify a specific undergraduate degree. That is, you could major in accounting, finance, political science, education, or one of several different degrees and still gain admission to law school. Students normally chose their undergraduate degree in the area of legal practice that is of greatest interest to them. If they are interested in practicing corporate law, they would probably want to major in some aspect of business at the undergraduate level. In addition, they would probably want to take as many Business Law electives as possible.