Hello
I am not a trainer but posting here to bump it up in hopes someone more knowledgeable will help. We recently had visitors who brought their dog which would attack ours if she went near her food, water, toys or parents.
Not a fun experience so we had to keep both dogs apart except for walks.
I have read things like allowing the non aggressor to eat first, go in the door first etc. but I don't know the details.
Looking forward to hearing what others have to say.