Hey mi amigo,
I don't get it???? Why would you be selling your house, without a ready to move in option in place???
Trust me, you don't want to put your family through the horrors of having to settle for whatever shitty option available for rent!!!
Why are you selling your house in the first place??? You got a new job in another state or city? Whatever is the reason for your actions,
My advise to you is to get a new place to live comfortably with your family first, before selling your old place.
Cheers