Teresa Pucheta had lived alone for years, until a friend with health problems needed a place to stay. She shared her house with him until he died of cancer, she says. "Then I saw the house was kind of lonely. Another friend said: 'There's a place you can get a roommate.'" That's when Pucheta first found out about a house-sharing program at St. Ambrose Housing Aid Center, a NeighborWorks network organization in Baltimore, Maryland.