Technically yes, but practically almost never. To block a sale, the condo board must exercise its Right of First Refusal and purchase the unit itself at the exact contract price - an enormously capital-intensive step most boards cannot take. When it happens, it is usually to prevent severely below-market sales that would damage building comps. Your real concern is the timeline delay while awaiting the formal waiver.
From the seller playbook: Condo Right of First Refusal Risk
This is general information, not legal, tax or accounting advice. Every situation is different. Talk to a licensed attorney, accountant or tax professional before you act.
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