From Labman's stock advice on puppies biting, ''I maintain a Lab's favorite chew toy is another Lab. Otherwise they settle for any person they can.'' Well, they expect other breeds of dogs to want to play too. and usually they will unless they are older, many dogs losing interest in puppy games by age 3.
If somebody is going to keep your puppy, they will have to support the other dogs' efforts to discourage it, or isolate the dogs.
You are sending the crate along?