Anonymous wrote:OP here - thanks for all the thoughtful advice. Here's where I am: went around mom and worked with dad to arrange for a nursing aid to be at the house with him from 8-12 every morning, get him bathed, dressed, fed, do his PT exercises with him. That way, mom can walk the dog and do her thing. There is an option to dial this care up or down depending on needs. Meanwhile, I am going to research an institutional plan B in case the in home care plan doesn't work out.
OP this sounds like a sensible plan. Hopefully when your mom sees it doesn't impact her day to day she will be more amenable. From what I've seen with family members, they resist the aide until they get to know them. Once they are a "person" then everything is ok. It's that initial thought of a stranger that freaks them out.