How does Propy work?

Could you elaborate on the workings of Propy? I'm curious about the processes and mechanics behind this cryptocurrency platform. Specifically, how does it facilitate the buying, selling, and management of real estate assets using blockchain technology? What are the key features and advantages that set it apart from traditional real estate transaction methods? Furthermore, what role does smart contracts play in the transactions conducted on the Propy platform? I'd appreciate a concise yet comprehensive explanation of how Propy functions and what makes it unique in the cryptocurrency and real estate space.