A demand for payment from unit owners for those condominium fees that were already discharged was not made prior to filing of complaint. Isn't that a condition precedent to any forcible action?
If they are for the collection of fees due after your discharge, and you remain on title to the property, then yes. However, the HOA cannot collect fees that accrued pre-discharge. So if the action is for pre-discharge fees, then it is invalid.
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They should not be trying to collect prepetition HOA fees. Any fees since you filed bankruptcy, they can sue you for.