Does this count for anything legally on an international level and does it mean the sale or purchase will be more legal. The answer is NO. You might find a few advantages to using or hiring an agent or realtor who has the licence and if it means you feel more comfortable then there is no reason to avoid an agent with a licence such as this.
The essential thing to remember is that all transactions of an international type, or any real estate at any level, local, national or international, should involve the services of a legal representative. The legal person is by far the most important element to any purchase be it locally or internationally. Most times an agent is purely the person who has the right contact names and details and will make the processing of the sale or purchase go a bit better. And sometimes bad agents will make a complete mess and you will wonder why they get any commission at all.
If interested, The CIPS designation is presented to agents and realtors who have been through the course organized by the Realtor association, mainly in the US, that centers around all the aspects of purchasing international property. Those who pass the course can use the designation and logo.