We’re coming in

Our landlord didn’t tell us she was selling the house and allowing ppl to come in until after already taking our rent check. So she tells us tomorrow someone is coming over to look and we have three dogs and everyone is at work so my family tells her I want three weeks of privacy until we move and then you can. I’ll be honest, idk what the laws are on this but this is just really stressful. And if they come in, my family is going to call 911. It’s like… idk