How to do it and what it is: https://medium.com/law-school-life-and-beyond/how-to-make-a-firac-the-best-way-to-organize-all-your-cases-e217263a184d

Choose a case from here:   https://supreme.justia.com/cases-by-topic/taxes/

Guidelines: FIRAC model, ~2-3 pages

Examples attached