By: Audree Mevellec Co-Founder of Global Marketing Agent certification (GMA) I remember that in the early 2000s, the concept of reciprocity in property advertising was introduced in the United States. At the time, most agents didn’t even know what… The post From Local Listings to Global Opportunity: How GDX Is Redefining International Real Estate Cooperation appeared first on Realtyna - Real Estate Web .