The following organizations provide resources on downpayments and closing a home purchase.
 

Department of Housing and Community Development: American Dream  Downpayment Initiative
Phone (617) 573-1300

Boston Department of Neighborhood Development Home Center 
Phone: (617) 635-HOME   

Community Service Network, Inc.   
Phone: (781) 438-1977
Serving the communities of Burlington, Lexington, Melrose, North Reading, Reading, Stoneham, Wakefield, Wilmington, Winchester & Woburn

MassHousing       
Boston Office: (617) 854-1000   
Western Mass Office: (413)733-0999   

Mattapan Family Service Center  
(617) 298-2045

NeighborWorks
(617) 450-0410
NeighborWorks is comprised of 14 member organizations throughout Massachusetts that provide a variety of housing services.

Nuestra Comunidad Development Corp (NCDC) 
(617) 427-3599   
Serving Dorchester, Hyde Park, Jamaica Plain, Mattapan, Roslindale, Roxbury, South Boston, South End, and West Roxbury.