Excuse me, when will the property management fee be generated, starting from buying a house, handing over a house or moving in?

Generally speaking, it is calculated from the date when the delivery conditions are met and the developer sends you a delivery notice, but it is otherwise agreed in the contract.

Because the property management fee is for public facilities, it is not limited by your living. Even if you don't live in the house for a period of time, your house shares public facilities, but if you don't live for a long time, you can negotiate with the property management company to give preferential treatment.