Annie, how are things going?
I feel for you and your daughter. If the members of that church were real Christians, the would have rallied around your daughter. If they still contact both of you, go to the police. I would think that is would qualify as harassment. From what I read, the best think for her was a divorce. If they keep coming to your property, ask them to leave without hearing what they have to say. When they either don't leave aor whont quit comming over, call the police and file a complaint about them tresspassing.
And remember this, they will one day have to explain this un-Godly behavior to the Lord.