Dr. Eltahir A.M. Elshaikh is an Assistant Professor of Construction Engineering and Management and Dean of Admission and Registration at Sudan University of Science & Technology, Sudan. He is a PMP and RMP certified. He is working as an academic staff member and consultant engineering in Construction engineering and management. He has participated in many scientific conferences in Sudan and abroad and has several publications related to construction management and building materials and sustainability. Current research interests are geared towards sustainability as related to construction materials, construction management, and legal issues in construction with specific focus on claims and variation orders and Real Estate. Dr. Elshaikh is a member of: Sudan Engineering Society since (2008), Sudan Engineering Council since (2008), and Sudanese Association for the Evaluation of Assets and Real Estate since (2012), Sudanese Sustainable Building Council since (2017).