Can the property owner give the owner's key to others privately and make holes in the wall without paying the property fee?

You can't. It is illegal for the property to give the owner's key to others without authorization and make holes in the wall. Owners can complain to the property company and demand compensation. However, the owner cannot refuse to pay the property fee on this ground.

Property fee is the service fee charged by the property company to the owner. According to the Measures for the Administration of Property Service Charges, property service charges should follow the principles of reasonableness, openness, fairness and impartiality, and be publicized in accordance with relevant state regulations. If the property management company fails to provide corresponding services as agreed in the contract, or there are other illegal acts, the owner can complain to the property management company and demand compensation through legal channels. However, the owner cannot refuse to pay the property fee on this ground.

Therefore, if the property company violates the law, the owner can lodge a complaint through legal channels and demand compensation from the property company, but this cannot be used as an excuse for not paying the property fee.