TREES Offers Prelicense and CNA Courses by Classroom, Online, Home Study and Zoom Virtual Formats as Well as Online and Home Study CE Courses as Low as $87 for 16 CE Hours.

Want to be a Part Time TREES Real Estate Instructor in Knoxville? Email Bill Whisnant at

$59 Value Now FREE!........Now TREES Prelicense and Office Mgt. Students Can Stream the FREE TREES Audio Real Estate Glossary of Over 650 Real Estate Definitions.

Call us today 800-572-8733
Live Customer Service, No Phone Menu (M-F)

Tennessee's Oldest and Largest Real Estate, Appraisal, and Home Inspection School

Ron Oslin

In Memory 1938 - 2022

Ron was cofounder of TREES, Inc. in 1975 with Bill Whisnant. 

 In 2000 he received the prestigious "Bill Tune" award from the Tennessee Real Estate Commission as "Educator of the Year". 

He graduated from Virginia Tech. An Associate  member of Chattanooga Association of Realtors, a member of REEA & REBAC.  Ron was very active in Masonic & Shrine activities and was an Elder of the Second Presbyterian Church in Chattanooga.