Hi Lorraine

Just my opinion and from my experiences bringing together another dog with existing dogs.....go to a parking lot with no fences between the dogs. Let them be withoin about 15 feet of each other and on leads. As you and the dogs settle down and you're dogs see that the new one isn't going to hurt you get a little closer, if they act up, then draw back again for a bit, keep doing this until you, you're dogs and the new dog can be close enough to sniff, be ready to pull back in case they get a little agressive, keep doing this till they are comfortable with each other. it took me about 30 minutes in the summer to introduce a 3rd rotti to my 2 in the parking lot, then we all met at my house and went through all the same procedures again until they could be off lead and sniffing, one will try to show dominence, hopefully only one!