@roger,
I posted it more for her info. She should take a look at the contract that was supposedly signed by her husband and read the fine print to see if the issue is covered in it.
Also, she needs to find out if unannounced visits means access to the inside of the home beyond a locked gate or, as you say, in their absence.
If we knew where the jurisdiction was for the parole contract (and, if different, the residence) we could look up some of the details.