Senior Leadership

John Yazwinski

President & CEO

John Yazwinski is president and CEO of Father Bill’s & MainSpring (FBMS), an organization formed by the partnership between Father Bill’s Place and MainSpring Coalition for the Homeless in 2007. John holds a Bachelors Degree in Marketing from Bentley University. He served as executive director of Father Bill’s Place since 1999. Through John’s leadership and vision, FBMS has emerged as a leader in creating housing solutions to address homelessness across the South Shore and Southeastern Massachusetts.


Nicole Fitzgerald

Chief Operating Officer

Nicole Fitzgerald graduated from the University of Massachusetts, Cum Laude, with a double major in Psychology and Women’s Studies. She first joined Father Bill’s Place in 1994, before working with Boston based shelters and treatment programs.  She returned to Father Bill’s Place as the Housing Director in 2000; she has held several positions including programs director, director of operations and most recently chief operating officer in 2008.  Nicole works closely with the President & CEO, John Yazwinski, to leverage millions of dollars for housing solutions and, has assisted in the creation, program development and implementation of more than 250 units of housing for individuals and families in the South Shore. 

Kristyn Lahiff, CPA

Chief Financial Officer

Kristyn Lahiff joined FBMS in 2009 as the Chief Financial Officer.  She is a certified public accountant, holds a Bachelors Degree in Accounting from Merrimack College and is a member of the Massachusetts Society of Certified Public Accountants. Her background includes working as an Audit Manager in the real estate division of McGladrey & Pullen and as a Controller for Rogerson Communities, a Boston-based non-profit organization that provides housing and health care for elders.

Lucille Cassis

Chief Development Officer

Lucille Cassis oversees fundraising, marketing and communications, and volunteers. She holds a Bachelors Degree in English from Boston University, and a Master of Arts in Communications from Emerson College. She has also achieved certificates in public relations and web development from Boston University and Emerson College respectively. Her background includes work within strategic marketing and communications as well as public relations, primarily in health care. She is also an associate lecturer in communications at Curry College, a member of the Association for Fundraising Professionals and the Public Relations Society of America.

Joyce Tavon

Director of Program Development

Joyce Tavon recently joined Father Bill’s & MainSpring as the Director of Program Development. She has a Masters of City Planning degree from the Massachusetts Institute of Technology and a BA from Brown University. Joyce has 25 years’ experience in leadership and management roles in addressing homelessness and assisting with nonprofit development. Prior to assuming her current position, Joyce served as the Coordinator of the South Shore Network to End Homelessness at the United Way of Greater Plymouth County. Joyce was also the founding executive director of the nonprofit, HomeStart which works with the homeless shelters of Boston and Cambridge to assist homeless adults to secure and sustain permanent housing.