Is there an immigration supervisor in Greece?

Greek immigrants who buy houses have no residence requirements, that is, there is no immigration supervisor. Greece's "permanent residence permit" is renewed every five years, and applicants do not need to enter or live in Greece. As long as investors have held the property for 7 years, they can apply for Greek naturalization. Will directly obtain "permanent residency" and have the right to legally reside in Greece. As long as the property held by investors is not for sale, the residence permit is a permanent residence permit.