Most older, adopted dogs do come with a bit of *baggage*. It may be separation anxiety or a bad habit or simply lack of training.
Amen Rachel! I have had a couple of older dogs that were wonderful all the way around but all of them needed a little work in some area. I try to smooth out the rough edges as much as possible before they go to a new home but just going to a new home can start those particular issues all over again and they have to learn all the new rules of that house.

I adopted an older pup from another rescue and it took me a month to get him out from under the table. He hadn't even seen a human until he was 14 weeks old. He's still a little strange but I still love him dearly .