I suggest that you and your husband sit down with your daughter and her husband and have a serious talk.
The present arrangement is proving not such a good idea as you all hoped.
You say they are making arrangments to pay their arrears of rent and are saving for a deposit. Surely, they should be dealing with the rent they owe first and be paying you housekeeping money?
Once the debt they owe is cleared they can start saving up for a deposit.
Perhaps you need professional help to sort out the finacial mess they are in.
Have any of you contacted Citizens' Advice or Social security, or have you all just assumed that no help would be forthcoming? It would be worth checking whether they are entitled to help.
If there is no option but for them to remain with you, you need some house-rules agreed upon and kept.
They may well be short of money, but if you and your husband are both pensioners, so are you. They are adults and need to come up with a solution, it is not only up to you, you know.
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