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Instructors

John Boguslawski

When you meet John the first thing you will notice is how much he enjoys his work. After 25 years as an owner, manager, recruiter, trainer, and general practitioner in real estate, John has returned to his first love- one-on-one client representation. John is an Associate Broker with Greenridge Realty and holds the Certified Residential Specialist (CRS), Graduate Realtors Institute (GRI), and Certified Relocation Professional (CRP) designations. Less than 2% of all agents hold these credentials.

Throughout his career, John has been recognized repeatedly for his dedication and excellence. His peers have elected him several times to offices in his Association of Realtors and Multiple Listing Service. John has even served as President, and in 1995, his fellow agents honored him again as "Realtor of the Year".

John's goal is to provide service that makes every client a friend and every friend lifelong, starting with you...

  • 1974 Alumnus, Grand Valley State University

  • Certified Residential Specialist recognized with an Elite

  • Membership awarded to only 3% of Realtors

  • 1995 Realtor of the Year chosen by the Grand Rapids

  • Association of Realtors for professional and civic involvement by the Employee Relocation Council-Certified Relocation Professional as designated

  • Graduate Realtor's Institute

  • 1998 President of Grand Rapids Association of Realtors

  • Michigan Certified Real Estate license instructor

  • Michigan Real Estate Continuing Education instructor

  • 2003 President, Michigan Association of Realtors

  • Certified Residential Specialists

  • E-Pro designated Realtor

Gregory Gronbacher

Originally from New York City, Gregory has lived in the Grand Rapids area since 1995.
 

Gregory has been licensed since 2013 and has been with Greenridge since 2015. He teaches licensing courses, continuing education, and test-preparation sessions. A former university professor, Gregory enjoys the classroom environment and helping students prepare for their careers.

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As an instructor, curriculum designer, and industry consultant, he has played a key role in shaping the educational landscape for agents and brokers across Michigan.

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Gregory teaches the 40-hour pre-licensure course, broker training, and multiple continuing education programs, including legal updates and specialized compliance topics. 

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Beyond classroom instruction, Gregory has contributed to numerous real estate textbooks and online courses, drawing on 20+ years of experience in higher education, instructional design, and professional training. ​

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Professional Background

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  • University Professor  - Ireland & US - 1992 to 1999 

  • Communications Director - Summit Training Source - 2000 - 2004

  • Web Editor UI/UX Lead - Amway Corporation - 2004 - 2013

  • Freelance Writer - Clarity Communications - 1997 to Present


Real Estate Background

 

  • Licensed Real Estate Salesperson - 2013

  • Grand Rapids Leadership Academy - 2014

  • MI State-Certified Instructor for Real Estate Licensing & Education since 2015

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Sharon Johnson

REALTOR, 39 Years
Associate Broker, 35 Years
Office/Sales Manager, 14 Years

Education and Designations:
Kirkoff College-Real Estate Law Course
Michigan State Certified-Pre-license trainer, Real Estate
Nationally Certified Trainer-At Home With Diversity
Orientation/Fair Housing/Agency-MLS Instructor- WMLAR


Committees/Community Involvement:
2004- Treasurer, West Michigan Lakeshore Association of REALTORS
2005- President, West Michigan Lakeshore Association of REALTORS
2005- Distinguished Service Award- West Michigan Lakeshore Association
2006- REALTOR of the Year- West Michigan Lakeshore Association
2007- Chair- West Michigan Lakeshore Association MLS Service
Pacesetter of Muskegon County United Way
Spokesperson for Kent and Ottawa County Victim Impact Panel
Victim Advocate for MADD, Kent and Ottawa County
Executive officer- MADD, Kent County

 

ADJUNCT INSTRUCTORS
  • Tom Paarlberg
  • Michael Courtright
  • Adam Paarlberg
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