Sia was born in Indonesia of Dutch parents and came to the United States in 1962 where she has remained ever since. She received her Master’s degree in Social Work from Fordham University and has dedicated her entire professional career to working in the field of gerontology. She worked first as a Social Work Coordinator at the Community Service Society in New York City, later at the New York City Department for the Aging as Assistant to the Commissioner, and from 1980 through January 2003 at the Brookdale Center on Aging of Hunter College, CUNY, where she was the Co-Director of the Institute on Law and Rights of Older Adults, an interdisciplinary advocacy program. For several years after she retired, Sia was a consultant to the Vera Institute of Justice where she helped develop a guardianship assistance program. Sia and her husband Jon have made Millerton, New York their home since her retirement in 2003.
Sia has written extensively on law and aging and the role social workers play in planning for incapacity in old age, long term care insurance, and the role of family caregivers. Sia’s areas of special interest are guardianship and ethical issues in aging. She co-edited the Legal Rights of the Elderly, published by the Practising Law Institute; co-authored an entry in the Encyclopedia of Financial Gerontology, entitled: Financial Elder Abuse; and recently co-authored A Guide to Guardianship for Lay Guardians Appointed Under Article 81 of the Mental Hygiene Law, published by the Vera Institute of Justice and available from the Office of Guardianship and Fiduciary Services, New York State Office of Court Administration.
Sia also serves on the Boards of the Berkshire Taconic Community Foundation and the Northeast Duchess Fund.