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Meet your


Passionate About Inspiring Others

Charlotte Greganti is a full-time Broker-Associate and has been licensed since 1996. In addition to being licensed since 1996, She obtained her broker-associate license in 2016.

She is also an approved instructor with the Oklahoma Real Estate Commission and is the owner of 4R Real Estate School. She teaches a pre-license, post-license, the broker's course and continue education class. 

She is passionate about teaching real estate courses.  She stays current with changes in the law and the course materials.  And since she actively lists and sells real estate, her examples and explanations are very relevant.

Charlotte Greganti

Co-Owner & Instructor

  • Broker Associate - License #126830

  • OREC Pre-License Instructor - License #174375

  • OREC Post-License Instructor - License #702442

  • 15+ Years of Real Estate Instructor Experience

  • 25+ Years Active Real Estate Agent Experience

  • Broker/Associate since 2016

Passionate About Inspiring Others

Sherry Kueffler is a real estate educator and licensed agent. She recently left the Oklahoma Real Estate Commission after over 20 years of service. The majority of her time there was spent as the Chief Investigator investigating complaint cases against real estate licensees. She was later promoted to Deputy Director and then ultimately became the Executive Director.

Sherry teaches the Pre-License course, the Broker-in-Charge course and CE classes.

Sherry lives in Midwest City with her husband, Patrick. They have five children and six grandchildren.

Sherry Kueffler


  • OREC Pre-License Instructor - License #183865

  • 20+ Years with the OK Real Estate Commission

Experience You Can Trust

What would you do if you discovered a secret that changed everything?

Let me share how Real Estate Changed my life beginning in the year 2000. I worked in a local office from the front desk to an assistant then As a New Licensed agent I quickly discovered my passion in Life. 

I loved a good challenge and serving others. With that being my driving force, I soon discovered this was a perfect combination to become the mega team we have today. It went beyond the "REAL” team!

I am now the broker/owner who invests in our agents to provided them the latest in technology, focused on marketing to get the “sold sign”. We are here as a team to serve the agents with leverage, so the agents can provide you, their clients, the attention you deserve through the process of buying, selling, or investing in your current or next real estate plans!

I look forward to being a part of your future!

Shelan Whitehead

Co-Owner & Instructor

  • Broker Associate - License #142643

  • OREC Continuing Education Instructor - License #178005

  • 18 Years of Real Estate Agent Experience

  • 6 Years of Managing Broker Experience

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