Does your area have a service that we have here in Australia called "Meals on Wheels, run through the local town authority which delivers a hot three course meal daily to elderly and infirm residents for a very nominal sum, ie., my 92yo Dad pays about $5.00. It is delivered at lunchtime every day by volunteers. Perhaps you could look into it and see if there is anything similar. Otherwise I'd tell your mother to deal with this as she is the one who instigated it. It sounds like you have enough to deal with.