Established by several executives of the prolific Chicago architecture firm DeStefano Partners, Lothan Van Hook DeStefano Architecture focuses on service and design excellence. Founding Principals Avram Lothan, Mary Ann Van Hook and James DeStefano have been working together for decades on projects with a proven track record of success. Led by Lothan as the Design Principal and Van Hook as the Managing Principal, this new generation consists of respected, senior-level leaders in the Education, Residential, Community and Commercial market sectors.