About Us

Riverside Management Services, Inc. (RMS) was established in June 2009 to provide dependable, comprehensive, and cost-effective amenity management and maintenance services for master planned residential communities in the greater Jacksonville area on a reliable, timely and professional basis.

The personnel involved in RMS have decades of experience in all aspects of property management. RMS has approximately 24 full-time, 12 part-time, and includes 30+ seasonal employees. The operations office is centrally located at the intersection of I-95 and southern part of I-295 for efficient access to all our clients in the Jacksonville area.

The various services provided by RMS include (but are not limited to) contract administration and inspection, maintenance bid document preparation, janitorial, pool maintenance, amenity center management, special event hosting, lifeguarding, pool attendants, residential and commercial pressure washing, painting, trash removal, restoration of facilities and equipment, and more. The wide range of services detailed in this company profile makes RMS the most complete, dependable, professional, and cost-effective choice for maintenance services for communities in the Jacksonville area including Clay, Flagler, Nassau, and St. Johns counties.

Darrin Mossing

Founder | President

Darrin Mossing is the founder of the Riverside Management Services, Inc. organization. He is also the President of Governmental Management Services (GMS), a family of related companies responsible for the management of over 250 Community Development Districts, Property Owner Associations, various Special Taxing Districts and Special Purpose Entities. Mr. Mossing has a bachelor’s degree in Accounting from Ohio University and has worked in the property management business for over 26 years.

Jerry Lambert

Vice President | Operations

For 28 years Jerry Lambert was the manager of the Prototype Metal Development Center and worked at the Engineering R & D facility in Auburn Hills, Michigan with Faurecia Automotive Seating. He has widespread experience with welding, automotives and assembly. He was the manager of a Testing Facility, Quality Lab, and Shipping & Receiving Departments for 15 years. He held a Michigan Builders License and owned a construction business for 20 years for commercial building interior renovations. Jerry leads customer delivery functions for the RMS organization.