“Well Savannah is a cheap ass, seriously NO caregiver for her mother that she claims is so frail she can hardly walk”
Yep. Maybe the sister was stuck with caring for her while Savannah was living the high life in NYC. Maybe the sister and BiL got tired of the annoying old lady and decided to end it.
with all of their money, building a tiny house on the property for a caregiver to live would have been a prudent option