The property can't find the landlord's phone number.

In this case, you can take the following measures:

1. Try to find the landlord's contact information: you can find the landlord's contact information through online search, social media, real estate agents, etc. , such as telephone, email, WeChat, etc. If the landlord rents a house through an intermediary, you can contact the intermediary and ask him to provide the landlord's contact information.

2. Go to the local housing authority to inquire: If you know the specific address of the house, you can go to the local housing authority to inquire about the owner information of the house so as to contact the landlord.

3. Seek legal aid: If you can't contact the landlord, you can seek legal aid. You can consult relevant legal institutions and learn how to solve the problem through legal channels.

4. Contact the local rental service center: If you rent a house through an intermediary, you can contact the local rental service center to consult relevant legal issues in order to solve the problem.

In short, in this case, you need to patiently find the contact information of the landlord and take appropriate measures to solve the problem. At the same time, we should also pay attention to protecting our rights and interests and avoid losses because we can't contact the landlord.