Management Team

Douglas M. Yeaman
President and CEO of Quantum Management Systems, Inc. and officer of QuREOs

Doug Yeaman, has trained more than 140,000 professionals, is the founder of Quantum Management Systems. A highly respected management consultant, he is known for his ability to create people-effective systems and train and consult within organizations, enabling them to become high-performance work groups, significantly increasing profitability. He has worked for 30 years extensively within the real estate industry and his work includes most of the best-run real estate companies in the U.S.

Mr. Yeaman's track record includes founding a soft drink company at the age of 23 which he subsequently sold to a Fortune 500 company and began to establish his now national recognition and reputation. Mr. Yeaman spent several years as a business consultant in Europe and the United Kingdom. Upon his return to the United States in the early 1970's, he organized a large management consulting company in the San Francisco Bay area. The firm specialized in organizational development, management consulting and training. His education is in physics and math with extensive post work in management and human resource development.

Sherry Pitcock
Senior Consultant and Partner with Quantum Management Systems and officer of QuREOs

Sherry Pitcock is Director of Business Development with Quantum Management Systems and an officer of QuREOs. She has been a Realtor for thirty years, a manager since 1988. She has managed top real estate offices for Prudential California Realty, Coldwell Banker, Jon Douglas and held training positions with other companies like Fred Sands and Keller Williams. She fully understands real estate at all levels, including the issues of managing agents and creating accountability around their work.  She is uniquely prepared to understand the issues involved in system design, training and working with agents and managers to implement a successful program.

Prior to her real estate career, she was a rocket scientist and mathematician which brings a valuable analytic approach to the work.

Ellaine Calhoun
Formerly, Senior Loan Officer with Prudential Mortgage Bank – Officer of QuREOs

Ellaine Calhoun is Operations officer for Quantum Management Systems and an officer of QuREOs.  She was in banking and mortgage lending  from 1973 to 1991. She was a senior loan officer for Prudential Mortgage Bank until she left in 1991 to join Quantum. In 1998 she took a sabbatical from Quantum at the request of Prudential Real Estate Services to help start Prudential Preferred Properties real estate in Chicago as it V.P. of operations.

Currently, she is a seasoned trainer and responsible for certifying Quantum’s trainers. She is a highly respected real estate trainer with strong systems management skills.