Yochanan (Johnny) Scheff is a seasoned professional with extensive experience in management and leadership roles across various companies. As the Co-Founder of Gemstone Management LLC and the Founder & CEO of A&H Services, LLC, Yochanan has demonstrated entrepreneurial expertise. Additionally, as the US Asset Manager at Marlin Spring and the CEO of Dunhill Remodeling, Yochanan has managed significant projects and operations. Yochanan's career also includes a role as Project Manager at Dunhill Development and Construction, highlighting a strong foundation in development and construction management.