Guam Chamber of Commerce
www.guamchamber.com.gu/

Guam Board of Realtors
www.guamrealtors.com

American Society of Appraisers
www.appraisers.org

Appraisal Inst.
www.appraisalinstitute.org

CCIM Commercial Real Estate Network
www.CCIM.com

Appraisal Foundation
www.appraisalfoundation.org