We actually have one of those lol! She is fine with chickens, rabbits, ducks, geese, lizards. Basically anything we can throw at her except cats. When we first got the animals she was around eight and didn’t have much experience with animals. Aside from chasing them for fun she was okay at first, then we had a bossy old hen peck her a few times and she learned. But when the goats got old enough they actually nailed her a few times and she has been extremely well behaved ever since. Not the nicest way, but we were new to animals and it worked out in the end. The only reason she isn’t fine with cats is because we have allergies and have never been able to properly socialize her around them. I would suggest a harness on the gentlest dog, let her sniff the cat (and probably lick it) and let them gently get acquainted. If she gets aggressive, a quick punishment, and if she behaves, a quick reward. Keep the harness so you can pull her either away or out if it goes south.Husband wants the dogs at the house already. Have to keep reminding him that we don't have a fenced yard for them yet, and I'd like to get more hiding/retreat spots set up for the cats. He then reminds me that his dog can jump/climb if she wants to...I really hope they can all get along. The dogs are purebred Havanese; his dog is retired from in-laws breeding program and the new puppy is actually her granddaughter.
I'd like to build a catio so the cats can safely enjoy the outside. Maybe someday. The dogs could probably use it too. Maybe have two pet doors? Floor level and head height leading to outside cat walks? That way the cats wouldn't be trapped by the dogs.