What happens to liens during a foreclosure?

[Randy Steele]

We purchased a property from the courthouse steps 3 years ago. Our understanding was this process cleared all liens on the property. But now we're being asked to pay delinquent bills from the former owner to the HOA. Does anybody know if we are legally obligated to pay the former owner's bills to the HOA even though the property went through the foreclosure process? The property is located in WA state.