Here is how the contract reads, I'm looking at mine dated 1/5/99:
Before PURCHASER (exact puncuation) may resell PURCHASER's Ownership Interest to a third party, PURCHASER is required to offer it to DVD upon the same terms and conditions, including financing, as is offered by or to the third party. Accordingly, PURCHASER must notify DVD in writing no less than thirty (30) days in advance of the proposed closing date of PURCHASER's intent to sell and must include a copy of the proposed transaction reducing to writing in all respects. Upon receipt of such written notice, DVD shall determine prior to the closing date whether it wishes to exercise its right of first refusal. If DVD elects to exercise its right of first refusal, DVD shall notify the PURCHASER in writing of such election, and the purchase of DVD shall be closed on or before the proposed closing date.
If DVD fails to notify PURCHASER of its election to exercise its right of first refusal prior to the proposed closing date, PURCHASER may proceed to close the transaction with the third party upon the original terms and conditions offered by or to the third party. DVD's right of first refusal is a covenant that runs with the land and shall always be a requirement binding on any sucessor in title to PURCHASER.
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sounds to me that they could immediately close on it if they choose.