Thanks everyone for the good vibes...I just hope they stay around for next week.

Keep in mind that the doggies may not take to one another at first sight, esp., since it will be on Bailey's territory. If your gramma didn't socialize him lots, or have many visitors, it is possible it just might be a retraining issue.
We are well aware...and are definitely ready for whatever the two of them might throw our way. He's definitely been socialized plenty, he's just a little bit...hyper. lol. But yes, he definitely needs to be retrained...no doubt about it.