Upon achieving a high level of personal success, he started recruiting, training, managing and motivating other real estate personnel. His lecture series on success in both business and personal life has benefited the thousands of real estate professionals that have attended. His coaching and mentoring program has resulted in some of the most successful real estate professionals in the marketplace.

In the fields of construction and development, Mark’s skills and experience have centered on successfully purchasing, improving, managing, and marketing real estate to achieve the highest possible value and return. Mark has been the key individual responsible for the acquisition of properties and bringing each project through all stages of development to their successful and timely conclusion. His responsibilities included the hiring and management of all required personnel, such as engineers, land planners, architects, construction personnel, sales and marketing staff, accountants and financial professionals.

In the mid-1970s, he founded MARC Realty and Investment Group and MARC Construction and Development. Since then, Mark’s companies have developed, built and sold luxury single family homes, residential communities, commercial office buildings, retail shopping centers, and managed investment properties. Such developments are located in Illinois, Wisconsin and Utah. Among those developments are: The Bald Eagle Club located in Dear Valley, Utah; Prairie Trails Estate located in Pleasant Prairie, Wisconsin; Silver Glen Estates located in St. Charles, Illinois; Lakeview Estates located in Barrington, Illinois; Williamsburg Village in Inverness, Illinois; and Regency Plaza in Palatine, Illinois.

Most recently, Mark’s company has purchased and renovated multi-million dollar condominium units in the downtown Chicago area, such as in the Water Tower Place Building. Additionally, the company is in the process of finalizing development of a 215 home residential community in Wisconsin.