Our Staff and Board


Thomas Callahan, Executive Director
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Tom has been with MAHA since 1987 and its executive director since 1991. MAHA's signature achievement has been the negotiation, creation, and expansion of the ONE Mortgage program (formerly SoftSecond loan program) which resulted from the 1989 Federal Reserve Bank of Boston study on racial disparities in mortgage lending. Tom serves on the boards of the Massachusetts Property Insurance Underwriting Association (Fair Plan), Massachusetts Community and Banking Council (MCBC), Community Labor United, and is a member of the Milton Fair Housing Committee and Milton Affordable Housing Trust Fund. He also is a member of the steering committee of the Community Preservation Coalition. Tom was a member of the Board of Trustees for The Appraisal Foundation from 2010-2015 where he chaired its Consumer Affairs Task Force from 2012-14 and was a member of Appraisal Subcommittee Advisory Committee for Development of Regulations as a result of the Dodd-Frank financial reform legislation.

Tom is a native of North Adams, MA and a 1982 graduate of Fairfield University. He was a Fannie Mae Fellow at Harvard's Kennedy School of Government Senior Executives in State and Local Government program in 1998. Tom was a participant in the Jewish Community Relations Council's Boston Haifa Learning Exchange in 2014. He previously served as coalition coordinator at Tenants United for Public Housing Progress and community organizer at Massachusetts Fair Share.

Jorge Casas, HomeSafe Program Manager
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Jorge has been with MAHA since 2001. He brings to MAHA nearly 30 years of experience in the housing field, mainly in the construction management area. Jorge previously worked at the Boston Materials Resource Center and Urban Edge. He is the in-house presenter for our property management and maintenance workshops. Jorge is bilingual in English and Spanish and grew up in Mexico.

Regina Cook, Assistant Director of Administration
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Regina has been with MAHA since 1994. Previously, she worked for 14 years in the banking field at Shawmut Bank as a supervisor in the bookkeeping department. Regina is also a faithful member at the Zion Temple Holy Church in Dorchester in which she serves on the financial board. She is a native of North Carolina.

Michelle Crockett, Foreclosure Prevention Specialist
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Michelle joined MAHA in 2007 after working in customer service positions in the health care and consumer finance fields for the last 20 years. Michelle is originally from Alabama and is a graduate of MAHA's homebuyer education class and a recent first-time homebuyer. She is a member of Jubilee Christian Church in Mattapan and takes classes at Cambridge College.

Hilda Fernandez, Homeownership Education Manager
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Hilda has been with MAHA since 2002. Her background includes several years of customer service experience, and over seven years of banking and lending experience at USTrust. Hilda is a Dorchester native with strong family roots in Honduras and Cuba. She is bilingual in English and Spanish.

Hillary Pizer, Associate Executive Director
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Hillary has been with MAHA since 1987. She previously worked at Clean Water Action and Massachusetts Fair Share on environmental issues. At MAHA, Hillary is the lead organizer for the grassroots Homebuyers Union and has staffed campaigns that have led to more than $2.3 billion in mortgage lending to lower income households in Massachusetts. She is a 1986 graduate of Harvard University and grew up in Lincoln.

Barbara Rice, Community Organizer
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Barbara has been with MAHA since 2004. She previously worked for 22 years with the Hotel Workers Union and the Hotel Workers Education Program. Currently, Barbara is an organizer for the grassroots Homebuyers Union. Previously of East Boston, she is a proud Soft Second homeowner and has lived in Roslindale since 1991.

Percy Stallworth, Home Purchase Advisor
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Percy joined MAHA's staff in 2014 but has worked with MAHA and other community organizations in a variety of capacities over the last twenty-five years. He previously was an organizer with Local 26 Hotel Workers Union, an affordable mortgage loan officer for The Boston Company and Citizens Bank, and a foreclosure prevention counselor for ESAC. Percy lives in Malden and grew up in Birmingham, Alabama.

Cortina Vann, Community Organizer
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Cortina has been with MAHA since 1999. She previously worked at Fleet Bank underwriting small business loans. Cortina has over 11 years working for financial service organizations. She is an organizer for the grassroots Homebuyers Union and has staffed campaigns that have led to an increase the city of Boston's linkage fee and establishment of an inclusionary development policy. She is a graduate of Boston Latin School and Mount Vernon College in Washington D.C. and a native of Roxbury.

Board Members

Acia Adams-Heath, (Dorchester) is a life long resident of Dorchester and has been a board member since December 2003 and served as board president from 2006-2010. She became a volunteer member of the MAHA Homebuyers Union in 2001. Acia has participated on numerous campaigns with the MAHA staff and Homebuyer Union members to promote investment in our urban communities and to make Boston a more affordable place for low to moderate income families. Acia's favorite quote is from Thomas A. Edison, "Many of life's failures are by people who did not realize how close they were to success when they gave up."

Thadine Brown Clerk, (Hyde Park) is a SoftSecond homeowner and Hyde Park homeowner. She has been an active volunteer with MAHA since 2008. Thadine is a dedicated young professional who is determined on making a lasting impact in her neighborhood. She is an alumna of Long Island University where she earned her bachelor’s degree in Marketing; and a graduate of Emmanuel College where she earned her master’s degree in Management and a graduate certification in Management & Leadership. She believes that giving back and advocating for others is ultimately the best way you can invest in yourself.

Jim Campen Treasurer, (Cambridge) a member of MAHA's board since 1993, was a faculty member in the Economics Department at UMass/Boston for twenty-seven years. His annual research reports on mortgage lending patterns in Greater Boston and on Community Reinvestment Act performance evaluations of Massachusetts banks and credit unions are available on MAHA's website. Jim is an active member of the Mortgage Lending Committee of the Massachusetts Community and Banking Council and formerly served as the chairman of the board of the Fair Housing Center of Greater Boston. Jim was born and raised in Eau Claire, Wisconsin, received a BA and PhD from Harvard, and lives in Cambridge.

Symone Crawford Vice President, (Mattapan) is a SoftSecond homeowner, resident of Mattapan, and an employee of Encompass Insurance. Symone is a very active member of MAHAs Homebuyers Union. She is also president of the non-profit Friends In Action for Caribbean Education, which seeks to provide financial assistance to youths in the Caribbean for school supplies, uniforms, transportation and lunch money to ensure that they are able to attend school.

Javier Fernandez, (Dorchester) is a resident of Dorchester and an active participant in the St. Mark's Area Main Streets Farmers Market. Javier got involved with MAHA through an online volunteer sign-up and became an ace phone-banker for MAHA's Get Out The Vote efforts. He was the Spanish Voice of MAHA in radio PSAs for our homeownership fair and meeting that drew 1,000 people. Javier works for BlueCross Blue Shield.

Lucille Andrew Marius, (Randolph) is a resident of Randolph and an attorney in Dorchester's Codman Square neighborhood. She has been a member of MAHA's Board since 2003.

Esther Maycock-Thorne President, (Brockton) is a resident of Brockton and a SoftSecond homeowner. She has been a board member since 2005 and begins a three-term as MAHA President in January, 2014. She is a native of Barbados and is the Leased Parking and Commuter Services Manager at Massachusetts General Hospital. She is a graduate of Suffolk University's Sawyer School of Management.

LaTayna Ramsey, (Allston) is a SoftSecond homeowner and resident of Brighton. She was elected board president in 2010. She formerly worked at Boston Medical Center as the Regulatory Affairs Coordinator/Data Manager for the Center for HIV/AIDS Care and Research. She is now the Process and Quality Group Specialist in the North America Medical Services department of Parexel, a global bio/pharmaceutical services organization.

Robert Sheridan, (Hingham) is president emeritus of Savings Bank Life Insurance. Bob chaired MAHA's capital campaign from 2006-2008 that resulted in our new home on Dorchester Avenue and also chairs MAHA's Kitchen Cabinet. Bob joined SBLI in 1990 as executive vice president and was named president and CEO in 1992. Prior to joining SBLI, he served as president of the Massachusetts Bankers Association. SBLI was successful under Sheridan with assets nearly tripled from $900 million in 1992 to $2.4 billion in 2011, and life insurance in force increased almost tenfold, from $12 billion to $114 billion.

Carlos Vargas, (Stoughton) has been an insurance agent in Dorchester since 1980. Prior to that, he was the assistant supervisor at a printing company in Canton, MA. He is president of Vargas & Vargas Insurance Agency Inc. with primary responsibility for marketing and client retention. He is actively involved in his church and with youth soccer as a past treasurer, current board member, coach and manager for Stoughton Youth Soccer. He is married, has two sons and is a graduate of Stoughton schools.

Tom Watkins, (Lynn) has been on the MAHA board since 1988. He has also served on the board of directors of the Massachusetts Tenants Organization, Massachusetts Chapter of the Sierra Club, Commonwealth Coalition, Cambridge Civic Association, Citizens for Participation in Political Action, and Citizens for Public Education. He worked in the New Hampshire State Headquarters of the John Kerry for President Campaign in 2004. He works as a computer and political consultant and land developer.


Massachusetts Affordable Housing Alliance
1803 Dorchester Avenue
Dorchester, MA 02124
By email:
By phone: 617-822-9100
By fax: 617-265-7503