My friend's stepson is in his late 20s. He is out of work & has moved his obnoxious out-of-work girlfriend in with him. My friend was the one to invite her to stay with them for a short period. Unfortunately, there was no contract saying when she'd be expected to leave. Does the girlfriend now have any sort of 'Squatter's Rights' that will make it hard for my friend to get her out of the home? I'm not sure how long she has had this girl in her home.

No squatter's rights, but she might now be considered a resident and will need to be formally evicted.

First there really is no such thing as squatters rights, that was years ago when you moved in and owned property after living there for so on.

Next she is a renter or resident, does not matter she is not paying rent. So she will have to be evicted to get her out of the house.

It is not hard to get her out of the house, but she will have to give her notice to leave, if she does not leave, then she files in court for an eviction

I agree with both answers, she likely is a resident and must be evicted if she doesn't leave on her own. Your friend needs to start with a quit notice, must follow the eviction process in their state.

My friend thought that she would have to give her notice to leave. I believe she told her that recently & gave her till June to vacate. I just didn't know if she had to do anything else to be legally correct.
Thanks for the replies gentlemen!
Carolp12

Yes, it must all be done legally according to the eviction laws which vary from state to state. Close does not count, one missed step and the "tenant" will not be evicted for another month or so.

It has to be writing and make sure she has proof she received it.