Who is responsibile for paying delinquent condo association fees once the property is foreclosed?

Best practices dictate that the board and association manager review the local laws and work with the bank to collect unpaid assessments and maintain currency with assessments as they are due until the unit is sold.

Your local association-savvy attorney may also have some ideas about collecting these assessments.
Unpaid assessments can only be paid once the unit is sold, usually.

Your answer may be location-centric. In some states, assessments have a 'super-priority' in terms of who gets paid first -- but only for six months' worth of assessments.

In some locations, smart associations pursue the banks for unpaid assessments and force payment with ongoing payments until the unit is sold.