Thank you for your question
My name is Clare
I shall do my best to help you but I need some further information first
Does he wish to claim housing benefit?
Why can you not just move there with the children anyway?
Ah I see
In that case there is no cause for concern in term of letting the property to him.
However it is not unusual for family members to rent in such circumstances and I have never known of conditions that prevented it!
My only concern would be the issue of whether you are allowed to live there or not.
You must read the small print very carefully especially if your ex is likely to be reporting you if you are not.
Please ask if you need further details