Animal control can take the animals from the home. That way you can spray and be rid of the fleas.
My advice would be to sell the house as is and either buy something cheap or rent.
Hopefully u can find something on this Federal Gov. list that will help u:
http://low-income-1.idilogic.aidpage.com...
Good Luck!
social services might help
If you're poor and have a home falling apart and it is riddled with fleas and is basically condemnable is there any programs you can seek help from to get a new home? This place...It really is bad and only a matter of time before the family is homeless due to the conditions.