Leslie S. Saul, IIDA, AIA, LEED AP®, founded LS&A an Architecture and Interior Design firm on December 21, 1992, with the following mission: to make the world a better place in which to Live, to Learn, to Age, to Work and to Play.At LS&A, we specialize in complex architectural and interior design projects. We thrive on challenging assignments in specialty areas that include corporate, academic, institutional, religious, retail and residential.