Florida- Mother signing custody over to adult sister?

well of course it wont just be signing paper work they will look into everything meaning criminal records and all that stuff and also the living conditions to see if the place is fit to race the children and living with your boyfriend will help you because they will see you got support but just as long as he hasn't had any trouble with the law and you must have a good enough job for them to see that you are fit to supply them with what they need and all that stuff.