From the little information that you have given...you have given this dog that is unknown to you, WAY too much freedom, and trying to do too much with her.
A dog that does not know the rules, boundries or who the leader is should NOT be let up on the furniture.
It sounds to me like you are expecting way too much from a strange dog that you have had for 1 day.
Put a leash on her when she is free in the house. Keep her crated when you cannot watch her and give her some time. She may be scared or overwhelmed in your house. If she is growling...back off..she is warning you.
She may be a terriffic dog...but you must give her a chance to settle...back off.
If you decide to keep her...then sign up for obedience classes ...she will learn that you are the leader and it will help to build a bond with her.
Gina