100% pure female Rottwieler puppy for sale (Hockessin) in Newark, Delaware For Sale

Rottwieler puppy for sale. 12 weeks old and 100% pure bread with all paperwork to prove it. We got her last week from a breeder and we paid $1,000. She is perfect in every way, she is playful, she gets along great with our 2 young kids and she gets along great with our other dog (Yorkie). The only reason we have made the tough decision to sell her is because of my wife's allergic reaction to the dog. We don't want to sell her, but we don't have much choice.
Since we've had her for a week already, she's almost housebroken too. You're welcome.
We are including everything that we have, included an expensive large metal crate. The crate was about $100 I believe. It was used with a previous dog.
We are asking $850 or best offer. We don't expect her to be for sale long.