(4) In the case of an HQS deficiency that the PHA determines is caused by the tenant , any member of the household, or any guest or other person under the tenant 's control, other than any damage resulting from ordinary use, the PHA may waive the owner 's responsibility to remedy the violation. The HAP to the owner may not be withheld or abated if the owner responsibility has been waived. However, the PHA may terminate assistance to a family because of an HQS breach beyond damage resulting from ordinary use caused by any member of the household or any guest or other person under the tenant 's control. (b) Family obligation.