My dog is a rescue and she had issues with jumping too. She used to jump on people all the time. And now she doesn't at all. To stop it, we would just ignore her when she jumped, would tell her to sit and as soon as she sat down, she'd get attention. Don't give her any attention when she's doing something that you don't like. My dog also like's to paw. So I kind of turned that into a game with her where she'll give you a high 5 instead of pawing at you.

Congrats on the new dog!