Ella Barnes-Williams is dealing with a lot right now.
For starters, her government-subsidized house in Northeast Washington, D.C., leaks when it rains. She points at a big brown splotch on the ceiling.
"It's like mold, mold, mold all over," she says. "I've got to clean that now 'cause that just came back."
Barnes-Williams is 54 and lives with her 30-year-old daughter and three young grandchildren. All three grandkids have severe asthma, which makes the mold a serious problem. And she and her daughter are diabetic.