Katherine Triantafillou

Katherine Triantafillou is an innovative lawyer, teacher and writer whose general litigation practice includes family and probate law, as well as mediation. Attorney Triantafillou was featured in Boston Magazine in 1994 as one of the city’s top lawyers and recognized in Feminists Who Have Changed America – 1963-1975 (2006). 

An energetic and committed community leader, Katherine served three terms as a City Councilor in Cambridge, Massachusetts, led efforts to enact a first in the nation Asbestos Protection Ordinance, co-drafted the Abuse Prevention Act, a national legislative model for addressing domestic violence, established the right of unmarried co-habitants to jointly adopt in Adoption of Tammy, and helped enact the City of Cambridge’s Domestic Partnership Ordinance. Katherine co-founded the Massachusetts Lesbian and Gay Bar Association and the National Lesbian and Gay Law Association and served both organizations as founding co-chair. She was a member of Board of Directors of MassEquality for five years and served a term as the organization’s Vice-President. 

In addition to her domestic law practice, Attorney Triantafillou has consulted internationally with a number of organizations including CARE, IFES, NDI and KEDE on a range of issues from the criminal defense of a Kenyan accused of plunder in Kosovo, training parliamentarians in campaign tactics and strategies in Bosnia, evaluating local government programs in Azerbaijan and creating a nurse’s training program for Iraqi women in Greece. Triantafillou has also presented papers on the issue of violence against women in Singapore and Cyprus. 

Katherine taught Family Law as an adjunct professor at Suffolk Law School and Sexual Orientation and the Law at Northeastern University, as well as paralegal training programs at Boston University, the University of Massachusetts, and Transition House, a shelter for battered women in Cambridge. She has been a frequent lecturer at continuing legal education seminars for the Massachusetts Bar Association and the Massachusetts Continuing Legal Education Foundation and a former member of the Mass Bar Association Family Law Council. Triantafillou also served as chair of the Mass Bar Association Individual Rights and Responsibilities Section. 

Her many publications include Representing Non-Traditional Families, How To Do Your Own No-Fault Divorce, The Legal Rights of Battered Women - How to Use the Law, and numerous essays that have appeared in the Boston Herald, Bay Windows, People for the American Way, and Cambridge Day. 

Katherine Triantafillou graduated from the Kennedy School of Government, Harvard University (MPA 1999), Suffolk Law School (JD 1975) and the University of Michigan (BS with distinction, 1972). She has offices on Martha’s Vineyard and in Boston, Massachusetts and may be reached by telephone at 508-693-1788 or 617-417-8971 and e-mail at katherine@ktlaw.us.

Katherine Triantafillou

Vital Statistics

Born:Saginaw, Michigan

Education: B.S., University of Michigan, 1972 (with distinction); J.D., Suffolk University Law School, 1975; M.P.A., Harvard Kennedy School of Government, 1999

Honors: Listed in Feminists Who Changed America 1963-1975 (2006); Transition House Leadership Award (2001); Cambridge NAACP Diversity Award (2000); Pauline Swift Award for Social Justice (2000); Cambridge Economic Opportunity Committee Recognition Award (2000); Cambridge YWCA Outstanding Women Award (2000); Patriots’ Trail Girl Scout Council Leading Women Award (1999); Cambridge Veteran’s Organization Veterans’ Salute (1999); Boston Magazine 20 Top Lawyers in Boston (1994); The Book of Uncommon Women, Legacy Foundation (1994); Massachusetts Bar Association Community Service Award (1992)

Work Experience: Katherine Triantafillou, Attorney at Law, 1975-1991, 2003-2011; founder and managing attorney, Triantafillou & Guerin, P.C., 1991-1999; City Councilor, Cambridge Massachusetts, 1994-1999