I had the same feeling when it was happening to me. I felt like it wasn’t important to make the sale. My broker was Fidelity. I wondered if they actually told the seller all of the fees that would be owed at closing. Once the papers were drawn up and the tax for international sellers was listed, they changed their mind I guess. It would have saved a lot of time and trouble if the sellers were informed. When the seller finally was in default, no one notified me. I just found a FedEx envelope laying on my porch with a check for the total purchase price. It was over just like that.