Margaret Caldwell is the formidable matriarch of an established Birmingham family. She is a woman managing a household of extraordinary complexity with a quiet authority and zero tolerance for the preventable. She knows every vendor by name, every seasonal obligation by date, and every property vulnerability by memory. She did not react to problems, she anticipated them. She also expected everyone working for her to do the same.

Margaret would have been the first client in Oakland County to demand a 12-month maintenance calendar. She would have reviewed it herself (in red ink) and returned it with three additions she expected completed before the end of the month. Her relationship with The Sentinels was not transactional. It was a partnership of mutual standards.