Ditto... I still feel the loss of my Rottie, and that was 5 years ago... Sounds like you all are big dog people... first hurdle...
I always say make sure to see the parents,, just as important I think as the papers.
I swear buy crate training if done properly (never punishment).
Do your research...It's informative and fun... it's a cool breed.
Socialize, Socialize, Socialize...
Train, Train, Train....Big dog...Big responsibility
Settle all disputes when these guys are youngsters and
little...you don't want to be working problems out when their a 100+...
Good luck...congrats... use this forum it's a good one....T