Vacant Home - parent in assisted living -how to insure

The situation of an aging parent moved into assisted living (not able to go back home ever) and NOT wanting to sell their SFH. Probably not happening until her death. Problem no one will insure it as vacant. We got one policy good for 1 year expiring soon. This can't be a unique situation, what are my/her options? The rural home is checked personally every 3-4 months BTW.