Seeking a retired 55+ female roommate

My mom is a 90 yr old widow living in a 55+ gated community in Mission Viejo with a room/bathroom available for rent. She has minimal mobility and spends most of her day in a wheelchair, but her mind is sharp and she is otherwise healthy. She has personal caregivers who come in the mornings and evenings to tend to her personal needs and help with meal prep and house chores. My Mom is seeking a retired 55+ female roommate - not a caregiver, but more of a companion with similar interests.

In exchange for heavily discounted rent, she needs a little help each afternoon with lunch and some personal needs - maybe an hour to an hour and a half each day. So the roommate needs to be someone who has a flexible lifestyle and could be available in the afternoons. This is an unusual situation, so please only respond if this is something that truly interests you. I can provide more details in a phone call.
Driveway parking is available, and the room is furnished with space available for personal items. She has one cat. Steve