I had a realtor stop by my in-laws house with a House for Sale by Owner sign and get out of the car, didn't say Hi and said I'm here with clients and they want to see the house? I said that the house wasn't quite ready yet and was cut off with her grinding her teeth at me and said I'm with clients and they want to see the house. She then walked past me and headed toward the door and said By-law you have got to let me know the house. I called her work and reported her and the broker was not helpful.
I'm appalled by your experience. You never have to let anyone in to your home EVER. Realtor or otherwise! And unless she had a appointment, I would not have let her in. Thankfully you called her broker. I hope she gets reprimanded but its unlikely. If she did not have your in-laws sign a broker cooperation agreement (assuming it's not on the MLS) she does not have the right to a commission either. I'm sorry you experienced this horrible situation and please know that not all Realtor act in this disgraceful fashion.