Picture: David Lotton and Cynthia Ferrer in Normandy, France, where they looked to buy a house for around $450,000. Matthew Avignone for The New York Times Buying a home abroad can seem tricky. But it’s also exciting. Just ask David Lotton and Cynthia Ferrer. These two Americans made their dream come true by buying a home in Normandy, France. Their story shows what’s possible for expats. Why Normandy? Normandy is beautiful and affordable. Prices are steady, not rising fast. The local market is balanced, which makes buying here less risky. Plus, the area is rich in culture and history. That’s a big draw for many people moving overseas. Steps to Buying…