Once you have a topic idea, you need to make sure it is unique. Survey the literature to make sure that your article is not too similar to an article that was already published, or one that is forthcoming. Ideally, you should complete the preemption check before you do too much research on the topic. If you find that there has already been a lot of scholarship on your topic, make sure your thesis is original enough that it adds to the body of knowledge. If you are uncertain whether your topic is distinct enough, check with your seminar professor.
Make sure your paper: