The American Society for Clinical Pathology (ASCP) signed a lease at 33 W. Monroe St. for 32,158 square feet on the 16th floor. The organization will be moving from its current location, 2100 W. Harrison St., in the Illinois Medical District. ASCP is one of many new tenants that have signed a lease at 33 W. Monroe St. since being purchased by 33 West Monroe Associates LLC in April 2004.