So, 3 months ago my brother brought home a stray cat that was hanging around his work for a month. It is declawed, but was a friendly cat (then).
We bring him home, he was house trained, he hated me and my mother, but soon after he changed his opinion on me, and now is exceptionally friendly to me.
He hisses at my mother and just pisses her off. As a result she's more than happy to let him outside in a hope he'll get lost, or worse (we have Racoons and Coyotes in the surrounding woods, plus a busy street in front of us).
My brother also began disliking the cat due to it hissing at him, and usually chases it around the house (no wonder it hates him).
My question is: how can I help get the cat to like them, before it ends us stray again or worse.