Method 1: If you only say it once and it still hasn't changed, I suggest saying it several times. Since she bothers us, we'll bother her, and we'll talk when we quarrel, but tell your mother not to be angry. Some people just can't do it.

Method 2: just find the aunt of the neighborhood Committee and let them take care of it. If everyone knows, she will feel ashamed. After all, no matter how cheeky you are, you have to go out. If she is always pointed at by everyone, she will be embarrassed.

Method 3: If it doesn't work many times, tell her to post her behavior in the advertising column of the community to let everyone know that we don't want to do this either. The point is that she has gone too far.

The above points are for reference only, so much can be thought of, not a prerequisite for harm. After all, although people's quality is not high, they should be polite. We can't ignore them in the end, can we?

Finally, I wish the landlord an early solution to the problem!