I don't have experience but I'm sure when you talk to the parents you will find out lots of organizations that have helped the family already. If it were me and I accepted the family into care I would make sure they are taking good care to help their child cope and thrive and I would want to some research so I knew what to expect and how to give the best care to the child. It sounds a little frightening. Will you have the time to give the special attention while caring for 4 other children? Those would be my main concerns. Good luck!