CALLED TO SERVE OUR EMPLOYEES, CLIENTS, SUBCONTRACTORS AND VENDORS. JMHC is family-owned and has been a leader in the site development market in Central Florida for over 28 years. JMHC is a WMBE. JMHC is built on the belief that personal service to our clients, expedient construction of our projects and maintaining a highly skilled work force ensures the success of our company.