[Carina43]

Well, holding onto her might be rewarding her for the behaviour - but I agree with LavederRott, you might want to check if it's legal where you live for a landlord to just walk into your home without permission!

What does she do, exactly, when he walks in? My dogs are friendly, but quite frankly I wouldn't expect them to just sit quietly when a relative stranger just came through the door unnanounced! Does she also act up when she sees him outside your home? A correction would be in order, if she just goes off when she sees him walking around the property - she should know that YOU have control of the situation, not her.

She's still a pup, you don't want her to get into the habit of going off whenever she decides she doesn't like someone. She doesn't need to like everyone she sees, but she should learn to keep her opinions to herself when out in public.

But I'd ask this landlord to knock before entering, and talk to your neighbors about it too. I used to be a landlord in Colorado, and without good reason, I could not just walk into the house unnanounced, by law.