Our party was split up when we made it to the farmstead. It was only myself, a half-elf ranger, a cleric & a paladin. We took on the owlbear, took some damage ourselves, but faired alright. Our DM let me keep the baby owlbear as an animal companion. "Furbull" is now 3rd level and loves to help us defeat our enemies in our adventures, but can also be a sweet & lovable companion.