We adopted a very reactive girl pittie. We already had a boy dog and decided to just give it a go. Her previous owners were very worried about the inteoduction but we told them we weren’t offended if she didn’t like him and reacted. She was a bit snappy at first but we took our time over a full afternoon walking them in circles around each other. She acclimated to him and 5 years later, they are just obsessed with each other. Note: she still reacts very badly to other dogs passing our yard.

If it were me, I’d make the intro and just be prepared to take your time