Has the house been delivered with a key? Do I have to pay property management fees and living expenses?

Of course, you can't deliver it without taking the key and signing it, unless you agree otherwise. It was not delivered until you got the key. As long as the owner and the developer sign the delivery procedures, even if the delivery is made, the rest is delivered together with the property. If the owner doesn't go to the property to get the key, the property won't go all over the world to find the owner to send the key, so the appraisal of the delivery is that the developer and the owner can complete the delivery procedures. According to the property regulations, the property fee before the house is delivered shall be paid by the developer and the owner after the house is delivered.