If this is the reason to fight back against the property lawsuit, what is the winning rate?

First of all, according to the information you provided, if the property management company has issued a notice to the landlord to charge the property fee and provided the charging standard, then the landlord may need to pay the property fee.

Whether the landlord can refuse to pay the property fee on the grounds that the house has been idle for a long time and does not need property services and has not signed a property fee contract with the property needs to be judged according to local laws and regulations. In some areas, even if the house is idle for a long time, the landlord needs to pay the property fee, because the property service is provided for the whole property area, not just for the houses of individual owners.

In addition, if the property company does not sign a charging contract with the landlord, then the landlord can refuse to pay the property fee on this ground. However, if the property management company has provided property services and the landlord has enjoyed these services, then the landlord may have to pay property fees.

Generally speaking, if the property management company has provided property services and the landlord has enjoyed these services, then the landlord may have to pay property fees. However, if the property company does not sign a charging contract with the landlord, and the landlord can prove that he does not need property services, then the landlord may win the case.

As for the success rate, we need to consider the specific legal provisions and the case situation, as well as the judge's understanding and handling of the case. Therefore, it is suggested that the landlord consult the local lawyer for more detailed information and suggestions.