What does Amir discover at the American embassy when trying to get information about adopting sohrab? What suggestion does the immigration lawyer give to Amir as his best chance of getting sohrab out of Afghanistan and into America?

Raymond Andrews told him that his chances of getting a visa for Sohrab were slim. He would have to prove that Sohrab was legally an orphan by providing death certificates for Hassan and Farzana; this would have been impossible even in pre-Taliban Kabul. Before leaving,