The Guardian American Team

Guardian American is a vertically integrated company. As developer-owners, the principals are directly involved in every aspect of the business cycle; funding land acquisition, investor relations, land development, vertical construction, marketing, all the way to handing the keys to our buyers. Thousands of homesites representing over a billion dollars in sales revenue have been delivered to satisfied customers.

We have extensive experience in both new construction and rehabilitation of residential properties. We provide proven strategies, offering construction management with complete oversight to completion and any necessary upgrades neglected by previous developers, utilizing the highest quality materials and workmanship. We have extensive developer due diligence experience and our expertise in all these areas has enabled us to create a loyal network with many of the finest architects, engineers, planners, consultants, and contractors in the industry.

Robert Johns  has been in the land development and construction business for over 18 years. Robert has an extensive engineering background with over 20 years of direct engineering design and field application experience. Robert also holds a Master’s degree in Business. Early in his career, Robert lead business development teams within Fortune 500 companies, into numerous product developments, teaming arrangements, and joint ventures with European, Asian, as well as U.S. based companies.
Robert then re-directed his experience to expand Guardian American Companies in 1998. Within Guardian American, Robert has developed numerous residential communities and hundreds of homes. Robert’s background includes Land Development and Construction, Construction Dispute Settlement, Public Insurance Adjusting, and Residential, Construction, and Commercial Loan Brokering. Robert is a Florida state certified general contractor and Florida state licensed public adjuster. Robert presently qualifies Guardian American to provide general contracting services in various regions around the State of Florida.


Bob Krieff is a major presence in Florida real estate, with over 35 years of experience as a home builder and developer, as well as serving the professional building community in highly visible and various leadership positions. Bob has a record of outstanding achievement building public and private enterprises committed to affordable housing, customer satisfaction, employee development and growth.

In previous roles, Bob served as Executive Vice President and Chief Operating Officer of a nationally recognized South Florida custom home builder and Division President for two national fortune 500 homebuilding companies where he was responsible for all land acquisition, community development and home building throughout the State of Florida and Commonwealth of Virginia. Bob has a long standing affiliation with the Guardian American Companies. Since the mid 1960’s, Guardian American has been a vertically integrated, Florida based, residential building and land development company. Over the past 35 years, Bob served this company in various consulting, senior management and principal ownership roles. Bob is also the founder of RDK Development Enterprises, a national real estate consulting company and is a regular contributor to Third Bridge, who provides market intelligence to private equity firms and hedge funds across three continents.  Over the course of his career, Bob is responsible for delivering thousands of affordable, move up, custom and retirement homes in urban, golf and country club, active adult and suburban communities to satisfied customers, exceeding a billion dollars in sales revenue.

In addition to his vast experience as a home builder and developer, Bob served as the President of the Builders Association of South Florida; Area Vice President of the Florida Home Builders Association; Director, National Association of Home Builders; Chairman of the Broward County Building and Zoning Code Enforcement Board; Executive Committee Member of the Advisory Board of Florida International University, College of Engineering and Design; Executive Committee Member, Affordable Housing Task Force, appointed by the Broward County Board of County Commissioners; Committee Member, appointed by Miami-Dade County Board of County Commissioners to Restructure the Miami-Dade County Building Department, and has served on other regional and national boards and advisory panels. Bob has a Bachelor of Arts degree and postgraduate studies in Educational Psychology from the University of Miami in Coral Gables, Florida. He is a recipient of the Builders Association of South Florida Builder of The Year Award and since 1979 is a State of Florida certified residential contractor.