A graduate of University of California at Los Angeles Law School, Miller has practiced law in Southern California for well over forty years, specializing in real estate. He has also advised and represented homeowner associations and independent schools. While firmly established in the wider Los Angeles area, Miller also nurtured a deep affinity for wilder, more isolated locales.

This began to flourish when Ed Olson became his client, and, in the early 1960s, asked him to work together on a bridge project in remote and rural Hāna in East Maui. Milton and Olson had first met in 1959, and have been in close contact ever since. Miller’s long-standing relationship with the Trust has grown daily, and Miller continues to spend as much time as he can in quiet, inspiring Hawai‘i places.

Currently a trustee of the Foundation which supports United Cerebral Palsy in Southern California, Miller is a member of the Community Advisory Committee for the San Diego Freeway/I-405 expansion project. He and his family have long been involved with American Field Service and Meals on Wheels.