A Latham & Watkins LLP secretary was honored on Monday by a Chicago-area, anti-slavery group for her efforts to end the practice in the country of Mauritania.The award was a surprise for Lynda Holiday Lawrence, who sits on the board of directors for The Abolition Institute, which is dedicated to ending slavery and human trafficking in the West African nation.“I could not live my life sitting in Hyde Park, living a few blocks from the former president of the United States, work at a global, quality law firm I …