If the dogs were three dogs who lived together all the time I would not be so worried. However, as they are coming together, perhaps for the first time, there could be some tension amongst them.
I would definitely be keeping a crawling baby in a completely dog-free zone and make sure none of the dogs can get upstairs or out of a certain area or left in a small room together if they don't know each other.
I still don't understand why the dogs are coming with them and why they can't go into kennels. That would be more courteous to you as host imo.
DBIL and SIL brought their dog to stay once, and although we have had our own dogs, we certainly would not have let them run all through the vegetable patch, come in with muddy paws and sleep on the bed at night as they did (they let her upstairs after we had gone to bed).
It's your house, new2me so you make the rules.
Retiring and living frugally in money from downsizing after years of stress






