Sian O'Malley Hahn, J.D.
Vice President, Trust Officer
Portland, ME
As Trust Officer, Sian is responsible for the effective oversight of accounts where members of R.M. Davis serve as Trustee in accordance with legal and regulatory requirements and internal policies and procedures. She works closely with internal and external parties, including Client Advisors/Trustees, beneficiaries, co-trustees, and legal and tax advisors, to ensure that trust assets are properly managed and distributed.
Sian was born in England, raised in Toronto, and moved to the United States in 1996. Currently, Sian resides in Cumberland with her husband and two children. She enjoys gardening, cooking, traveling, and spending time with her family at their camp in Liberty.
Work Experience
- R.M. Davis, joined in 2026
- H.M. Payson, Trust Officer
- LeBlanc & Young, Counsel
- Carter Ledyard & Milburn LLP
Education
- Pace University School of Law, J.D.
- University of Toronto, Honors B.A., French Linguistics and Anthropology
Memberships
- Maine State Bar Association
- Maine Estate Planning Council
Community Involvement
- Westbrook Seals Swim Club (past)
- U.S.A. Swimming Official (past)

