That window also gives room to sort out anything that could slow a sale later, confirming mortgage discharge terms with your lender, gathering documents your lawyer will need, and addressing any obvious maintenance a home inspection, typically $400 to $600, would otherwise flag.
A tighter deadline is still workable. A home does not need months of preparation to sell well, it needs an accurate price and a clean presentation, and both of those can come together in a couple of weeks if needed.
More lead time buys options, but price and presentation are what actually sell the home. Get your hand-reviewed valuation from Joel Dyck.