What does POA mean in immigration?

Power of attorney, POA for short. The key document of immigration is the power of attorney signed by the authorized person.

For example, POA for Greek immigrants to buy a house is divided into two parts: POA for buying a house and POA for immigrants. Buying a house POA is to authorize a lawyer to purchase a house, and the immigrant POA is to authorize a lawyer to assist immigrants to purchase a house. Whether you choose to buy a house in China or choose to buy a house after traveling to Greece, you need to sign the POA in advance. After buying a house successfully, you need to log in to Greece to sign POA for immigration.