About Schellhammer Estates: Gregor Schellhammer manages Schellhammer Estates. Schellhammer is a a British and Swiss national who has lived in Spain since 1988. As an expat himself, Schellhammer knows what a fellow expat needs. Whether you are looking to buy, sell, or rent a real estate, Schellhammer Estates will offer you the real solution for a successful transaction.