No. Verify the current official terms and the family's eligibility first, then take tax advice on the disposals, then act. A sale made on an assumption is not reversible if the terms turn out to differ.
Verification precedes liquidation
Hypothetical example: a Grand Bay-Westfield engineer prepares to sell a cottage and collapse part of his registered savings so that funds are ready the moment the program opens to him. The order is backwards, and the risk is entirely on his side. Disposing of assets triggers Canadian tax consequences immediately and cannot be undone, while the framework's terms, amounts and eligibility conditions are published by the program and have changed before.
The safer sequence is to read the official page and FAQ and record the date, obtain written answers on the questions that affect his household, confirm he is admissible on ordinary grounds, take Canadian tax advice on the specific disposals, and only then liquidate. If a deadline is being used to hurry that sequence, verify the deadline itself from the official source.