You absolutely do not need hard sciences for anything related to copyright and trademarks, including in a law firm. You can be an IP lawyer without a STEM degree.You can even be a patent attorney but only on the litigation side. In order to qualify for the Patent Exam, you will need at least a bachelor's degree in one of the specified fields of science or engineering. Even if you do not have the technical background or have no wish to practice patent law of any kind, it is still strongly suggested that you take Patent Law. There are a number of areas in IP that don't require a science background. As rayiner mentioned, there is IP litigation. Unlike traditional bar exams, applicants do not need a legal background. The patent bar requires a hard science background, such as a degree in engineering, chemistry, physics, or biology. Law school alone does not provide enough understanding of how to formulate a patent application.