Black German Shepherd (Mill Creek)

We sadly have to rehome our female German shepherd.
She is black long haired.
She's approx 2 years old.
Weighs about 55 pounds.
She is completely house broken.
She sits by the door to let you know she has to go.
She does great for care rides.
Needs some leash work but does good with a gentle leader.
She does great with my 3 boys.
She knows some basic commands.
I'm asking 450 to ensure a good home!