When does a listing expire if a seller accepted an offer after the listing period?

In real estate, the expiration of a listing agreement generally occurs at the end of the specified period outlined in the contract, regardless of whether an offer has been accepted after the listing period. If, for example, the listing agreement specifies that it ends on a particular date—let's say December 17—then that is the official end date, even if an agreement was reached shortly before the expiration.

If December 17 is indeed the date outlined in the listing agreement, that means the seller's agreement to list the property and the associated terms remain valid until that date, allowing the transaction process to conclude even if it occurs after the original listing period. This is why December 17 is the correct choice; the contract's terms govern the timeline, ensuring that the process can smoothly transition to closing after an offer has been accepted.

The other choices would not correctly represent the expiration date as specified in the scenario because they imply incorrect termination of the listing agreement, either before the accepted offer's date or outside the terms set forth in the listing agreement itself.