About Us

Business Real Estate, Inc. is a full service real estate company in Jupiter, Florida which specializes in northern Palm Beach County and Treasure Coast commercial real estate. We provide brokerage, landlord representation, tenant representation, property management and consulting services to owners of office, retail and industrial properties and purposely limit ourselves to a relatively small geographical area so that we can maintain our market dominance and superior market knowledge while providing the best service to our clients.

The principals and agents of Business Real Estate have over 50 years of combined experience in the local market and we unlike other firms, focus our efforts on a relatively small geographic area with the intent to be the dominant company in the market in both terms of market knowledge and the number of available properties.


  • Jack Robson is the President and Broker for Business Real Estate and has been active in the commercial real estate market in Palm Beach County. Prior to becoming affiliated with Business Real Estate, Jack had his own property management and consulting firm in West Palm Beach, worked as a commercial broker for Trammell Crow Company, was the project manager for an international real estate development and investment company and was a Certified Public Accountant with Coopers & Lybrand. Jack is a native of northern Palm Beach County, lives in North Palm Beach and is married with three children.
  • Mark Klaine has been active in commercial real estate in Northern Palm Beach County for over twenty-five years and has had the opportunity to work with some of the most powerful property owners in our area. He has sold some of the most prestigious properties in the area and has leased space in retail, office and office/warehouse properties for many years. He has participated in the development, management and sale of many individual buildings and commercial condominiums. Mark is a native of Palm Beach County, is an extensive world traveler, lives in Palm Beach with his wife and has two grown children.
  • Dan Sefjack has been with Business Real Estate for over four years and in that short time has established himself as the “King of Leasing” in the Jupiter area. He specializes in both tenant and landlord representation and prides himself on keeping abreast of market trends and available space. Dan has the reputation for taking on any assignment no matter how challenging and getting it done right the first time.

At Business Real Estate, Inc. we take pride in being the local market leader in commercial real estate brokerage.