During her three years of law school, Mandi Moreland volunteered 1,000 hours to various causes. The 29-year-old recorded more service hours than anyone in her law school graduating class of about 260 students.Moreland, who graduated last month from DePaul University College of Law, plans to pursue public health law.“At the root of public health is helping people be healthy. There are so many ways to do that and that …