This chapter first explains how to deal with problem-solving questions set for students on undergraduate law programmes. This includes consideration of the IRAC model and how to identify the relevant issues, apply the relevant law to the facts, identify a remedy, draw a clear conclusion, and structure and communicate an answer effectively. It then explores the practicalities for lawyers when problem-solving in practice, such as: effective case and matter analysis, clients providing insufficient or too much information, taking account of clients’ personal and commercial objectives, and considering other stakeholders’ interests. Next, the chapter considers in more detail the conclusion of problem-solving in practice: identifying options and advising the client.