Make a list of the schools that interest you. Start by listing your ultimate schools, like Harvard Law, then move on to the schools in which you have a good chance of being accepted, and finally, the schools where you know you will be accepted, but aren't sure that you would want to attend (last resort or safety schools).
Check the average LSAT scores of new students for your schools of interest. Compare the average score with yours to evaluate whether or not your scores are competitive enough to be considered.
Investigate the curriculum available at each school in the area of law you plan to study. Cross the schools off your list that do not offer many classes available in your chosen area of law.
Consider your finances. The cost of tuition, room and board, and books is a huge factor when choosing a law school. Don't apply to schools that are out of your financial reach and make sure you have the financial backing for each school on your list.
Decide if location matters. Law school is stressful and you must evaluate whether or not you can handle those stresses in unfamiliar surroundings without friends and family nearby for support.