The house has been transferred, what should the property company do?

The property has no right not to change its name, provided that you have transferred the ownership and changed your name with the real estate license. This is a legitimate and reasonable request and a due right.

Secondly:

The property has no right to power off the owner. Of course, some coastal areas have proposed to legalize certain types of owners' power cuts. But even if you are in this respect, your situation is not within the scope and so on.

Once again:

As far as the debt problem you mentioned is concerned, it is basically the problem of the real estate and the former owners.

Finally: you can find the local neighborhood Committee, the street office, or the industry department of the Housing Authority, or sue the property.