Companion Care Needed

We need a helper for my brother in law while he cares for his ill wife; they have three children and a small dog. Expected tasks include light housekeeping, laundry, and washing dishes, along with occasional errands such as grocery shopping, simple meal preparation, and transporting the youngest child (11) to and from school. We ask that you handle transportation as needed. Preferences for a caregiver who is a non-smoker and comfortable with pets.