He lost his job after his contract as a part-time delivery driver ended months ago, and has not found another job since.
His five children, aged between five to 13, are looking to him for food and pocket money.
Said Mr Mohd Fami, 38: "My income now is zero. I have savings but it won't last long."
His wife left him so he is the only parent bringing up his children, he claimed.
Mr Mohd Fami owned a four-room HDB flat in Pasir Ris previously, but sold it last year as he could no longer afford paying the bills for it.
After paying off the housing loan, he claimed he had little money for another flat. So in February this year, he moved his family into a three-room interim rental housing (IRH) at Block 46, Bedok South Avenue 3.
He said: "It's tough being a single parent with so many kids. Money is always an issue.
"Back when I still had work, there were many times I had to leave my kids alone in the rental flat. It wasn't a good feeling." He pays about $100 per month for rent.
There are other families like Mr Mohd Fami's housed in blocks 46 and 50 in Bedok South.