My name is Mars!

Name: Mars
Age: 18 weeks
Breed: Staffy Mix
Current size: 50 lbs
Size potential: About 100 lbs
Leash trained: No
Crate Trained: No
Potty trained: No
Kids: Friendly
Other animals: Friendly!
Energy level: Medium/Low
House or apartment: Currently outdoors on land, but enjoys time indoors when he gets an opportunity. So far no potty accidents inside.
Story/background: His mama was a stray that showed up a couple of days after Christmas. Sweet dog, we already had three, my dad said he'd keep her. She remains a very friendly, laid back, playful indoor/outdoor dog. - He planned to spay her, but this was delayed...so 14 puppies later.... Mars was a survivor. He has a silly personality and is a bit of a goofball, but has learned quickly - maybe by following others first, but he gets it on his own every time after. He loves to play and is very affectionate.
Ideal home/family lifestyle: He does great being able to play and roam outdoors. Ideally, he has other animals to play with and explore with semi-freely. We have not had him indoors very much, but a couple of his siblings have been adopted and have transitioned well. He is a smart dog and I believe will learn quickly, if trained.